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The Space Files: The Inner Solar System INTRODUCTION TO THE AIMS TEACHING MODULE (ATM) Rationale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Organization and Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 INTRODUCING The Space Files: The Inner Solar System Jump Right In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Themes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 PREPARATION FOR VIEWING Introduction to the Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Introduction to Vocabulary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Discussion Ideas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Focus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 AFTER VIEWING THE PROGRAM Suggested Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 All Inner Solar System Programs Inner Solar System Fact Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 All Inner Solar System Programs Word Search . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Inner Solar System: The Sun Checking Comprehension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Inner Solar System: The Sun True or False . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Inner Solar System: The Sun Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Inner Solar System: Mercury Checking Comprehension - Short Answer Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Inner Solar System: Mercury Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Inner Solar System: Venus Checking Comprehension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Inner Solar System: Venus Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Inner Solar System: Earth Checking Comprehension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Inner Solar System: Earth Cause and Effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Inner Solar System: Earth Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Inner Solar System: Moon Checking Comprehension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Inner Solar System: Moon True or False . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Inner Solar System: Moon Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Inner Solar System: Eclipses and Auroras Checking Comprehension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Inner Solar System: Eclipses and Auroras Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 Inner Solar System: Mars Checking Comprehension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 Inner Solar System: Mars Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 ADDITIONAL AIMS MULTIMEDIA PROGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 ANSWER KEYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 2 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Congratulations! You have chosen a learning program that will actively motivate your students and provide you with easily accessible and easily manageable instructional guidelines and tools designed to make your teaching role efficient and rewarding. The AIMS Teaching Module (ATM) provides you with a video program correlated to your classroom curriculum, instructions and guidelines for use, plus a comprehensive teaching program containing a wide range of activities and ideas for interaction between all content areas. Our authors, educators, and consultants have written and reviewed the AIMS Teaching Modules to align with the Educate America Act: Goals 2000. This ATM, with its clear definition of manageability, both in the classroom and beyond, allows you to tailor specific activities to meet all of your classroom needs. RATIONALE ORGANIZATION AND MANAGEMENT In today’s classrooms, educational pedagogy is often founded on To facilitate ease in classroom manageability, the AIMS Teaching Benjamin S. Bloom’s “Six Levels of Cognitive Complexity.” The Module is organized in three sections: practical application of Bloom’s Taxonomy is to evaluate students’ I. Introducing this ATM thinking skills on these levels, from the simple to the complex: will give you the specific information you need to integrate the program into your classroom curriculum. 1. Knowledge (rote memory skills), 2. Comprehension (the ability to relate or retell), 3. Application (the ability to apply knowledge outside its origin), II. Preparation for Viewing 4. Analysis (relating and differentiating parts of a whole), provides suggestions and strategies for motivation, language 5. Synthesis (relating parts to a whole) preparedness, readiness, and focus prior to viewing the program 6. Evaluation (making a judgment or formulating an opinion). with your students. The AIMS Teaching Module is designed to facilitate these intellectual III. After Viewing the Program capabilities, and to integrate classroom experiences and assimilation provides suggestions for additional activities plus an assortment of of learning with the students’ life experiences, realities, and consumable assessment and extended activities, designed to broaden expectations. AIMS’ learner verification studies prove that our AIMS comprehension of the topic and to make connections to other Teaching Modules help students to absorb, retain, and to demonstrate curriculum content areas. ability to use new knowledge in their world. Our educational materials are written and designed for today’s classroom, which incorporates a wide range of intellectual, cultural, physical, and emotional diversities. AIMS Teaching Module written by Patricia A. Peirson. © Copyright 2002 AIMS Multimedia All Rights Reserved. No part of this work may be reproduced or transmitted without written permission of AIMS Multimedia with these exceptions: Persons or schools purchasing this AIMS Teaching Module may reproduce consumable ATM pages, identified in Section 4, for student or classroom use. AIMS Multimedia is a leading producer and distributor of educational programs serving schools and libraries since 1957. AIMS draws upon the most up-to-date knowledge, existing and emerging technologies, and all of the instructional and pedagogical resources available to develop and distribute educational programs in videocassette and CD-ROM. Persons or schools interested in obtaining additional copies of this AIMS Teaching Module, please contact: AIMS Multimedia at: Toll Free: 1-800-367-2467 Fax: 818-341-6700 Web: www.aimsmultimedia.com Email: [email protected] 3 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 FEATURES INTRODUCING THE ATM Introduction To The Program After Viewing the Program Introduction to the Program is designed to After your students have viewed the enable students to recall or relate prior program, you may introduce any or all of Your AIMS Teaching Module is designed to knowledge about the topic and to prepare these activities to interact with other accompany a video program written and them for what they are about to learn. curriculum content areas, provide reinforcement, assess comprehension skills, produced by some of the world’s most credible and creative writers and producers Introduction To Vocabulary or provide hands-on and in-depth extended of educational programming. To facilitate Introduction to Vocabulary is a review of study of the topic. diversity and flexibility in your classroom language used in the program: words, and to provide assessment tools, your AIMS phrases, and usage. This vocabulary Teaching Module features these components: introduction is designed to ensure that all learners, including learners, limited will English Themes proficiency have full This section tells how the AIMS Teaching understanding of the language usage in the Module is correlated to the curriculum. content of the program. Themes offers suggestions for interaction with other curriculum content areas, Discussion Ideas enabling teachers to use the teaching Discussion Ideas are designed to help you module to incorporate the topic into a assess students’ prior knowledge about the variety of learning areas. topic and to give students a preview of what they will learn. Active discussion stimulates Overview interest in a subject and can motivate even The Overview provides a synopsis of content the most reluctant learner. Listening, as well covered in the video program. Its purpose is as to give you a summary of the subject matter Encourage your students to participate at the and rate they feel comfortable. Model sharing to enhance your introductory speaking, is active participation. personal experiences when applicable, and preparation. model listening to students’ ideas and opinions. Objectives The ATM learning objectives provide guidelines for teachers to assess what Focus learners can be expected to gain from each Help learners set a purpose for watching the program. After completion of the AIMS program with Focus, designed to give Teaching Module, your students will be able students a focal point for comprehension to demonstrate dynamic and applied continuity. comprehension of”” the topic. Jump Right In Preparation for Viewing Jump In preparation for viewing the video instructions for quick management of the Right In provides abbreviated program, the AIMS Teaching Module offers program. activity and/or discussion ideas that you may use in any order or combination. 4 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Critical Thinking SUGGESTED ACTIVITIES In The Newsroom Critical Thinking activities are Each AIMS Teaching Module designed stimulate contains a newsroom activity activities you can direct in the classroom or learners’ own opinions and designed to help students make the have your students complete independently, ideas. These activities require students to use relationship between what they learn in the in pairs, or in small work groups after they the thinking process to discern fact from classroom and how it applies in their world. have viewed the program. To accommodate opinion, consider their own problems and The purpose of In The Newsroom is to your range of classroom needs, the activities formulate draw actively involve each class member in a are organized into skills categories. Their conclusions, discuss cause and effect, or whole learning experience. Each student will labels will tell you how to identify each combine what they already know with what have an opportunity to perform all of the activity and help you correlate it into your they have learned to make inferences. tasks involved in production: writing, The Suggested Activities offer ideas for possible to solutions, researching, producing, directing, and classroom curriculum. To help you schedule your classroom lesson time, the AIMS Cultural Diversity interviewing as they create their own hourglass gives you an estimate of the time Each AIMS Teaching Module classroom news program. each activity should require. Some of the has an activity called Cultural Awareness, Cultural Diversity, activities fall into these categories: Extended Activities or Cultural Exchange that encourages These activities provide students to share their backgrounds, opportunities for students to These activities are designed cultures, heritage, or knowledge of other work separately or together to to aid in classroom continuity. countries, customs, and language. Meeting Individual Needs Reluctant learners conduct learners acquiring English These are experimental or activities geared to enhance comprehension tactile activities that relate of language in order to fully grasp content directly to the material taught benefit from Many of the Link to the World in the program. Your students These activities offer ideas for connecting learners’ and formulate ideas on their own, based on suggested media or content areas. will have opportunities to make discoveries meaning. Curriculum Connections research, apply what they have learned to other Hands On these will further explore answers to their own questions, or and classroom activities to their what they learn in this unit. community and the rest of the world. Writing Culminating Activity activities are intended to ART integrate the content of the ATM program into other Every AIMS Teaching Module To wrap up the unit, AIMS content will Teaching areas of the contain an activity Modules cross- designed for students to use suggestions connections turn the classroom teaching the writing process to express reinforce what students have their ideas about what they have learned. learned and how they can use their new The writing activity may also help them to knowledge to enhance their worldview. classroom experience experience. curriculum. into a These whole learning make the connection between what they are learning in this unit and how it applies to other content areas. 5 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 for offer ways to ADDITIONAL ATM FEATURES Test After Viewing The AIMS Teaching Module Test permits you • Select Suggested into Activities Vocabulary to assess students’ understanding of what integrate Every ATM contains an activity that they have learned. The test is formatted in curriculum. reinforces the meaning and usage of the one of several standard test formats to give materials or resources. vocabulary If your that classroom applicable, gather the your students a range of experiences in test- program content. Students will read or find taking techniques. Be sure to read, or the definition of each vocabulary word, then remind students to read, the directions work on each activity. Some activities use the word in a written sentence. carefully and to read each answer choice work best for the whole group. Other before making a selection. Use the Answer activities are designed for students to Key to check their answers. work independently, in pairs, or in words introduced in Checking Comprehension • small groups. Whenever possible, Checking Comprehension is designed to help you evaluate how well your students Additional understand, Programs retain, and recall the Choose the best way for students to AIMS encourage students to share their work Multimedia with the rest of the group. information presented in the AIMS Teaching After you have completed this AIMS Module. Depending on your students’ needs, Teaching Module you may be interested in you may direct this activity to the whole more of the programs that AIMS offers. This Vocabulary, Checking Comprehension, group yourself, or you may want to have list includes several related AIMS programs. and consumable activity pages for your students work on the activity • students. page independently, in pairs, or in small groups. Answer Key Students can verify their written answers Reproduces tests and work pages with through discussion or by viewing the video a answers marked. • You may choose to have students take consumable activities home, or complete them in the classroom, second time. If you choose, you can independently, or in groups. reproduce the answers from your Answer Key or write the answer choices in a Word Duplicate the appropriate number of JUMP RIGHT IN • Bank for students to use. Students can use this completed activity as a study guide to Preparation prepare for the test. • Administer the Test to assess students’ comprehension of what they have Read The Space Files: The Inner Solar learned, and to provide them with System practice in test-taking procedures. Themes, Overview, and Reproducible Activities Objectives to become familiar with The AIMS Teaching Module provides a program content and expectations. • Use the Culminating Activity as a forum for students to display, summarize, selection of reproducible activities, designed • Use Viewing extend, or share what they have learning unit. Whenever applicable, they suggestions to introduce the topic to learned with each other, the rest of the are arranged in order from low to high students. school, to specifically reinforce the content of this difficulty level, to allow a Preparation for or a organization. seamless facilitation of the learning process. You may Viewing choose to have students take these activities • Set up viewing monitor so that all students have a clear view. home or to work on them in the classroom independently, in pairs or in small groups. • Depending on your classroom size and Checking Vocabulary learning range, you may choose to The checking Vocabulary activity provides have students view The Space Files: The the opportunity for students to assess their Inner Solar System together or in small knowledge of new vocabulary with this word groups. game or puzzle. The format of this vocabulary activity allows students to use the related words and phrases in a different • Some students may benefit from viewing the video more than one time. context. 6 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 local community The Space Files: The Inner Solar System Themes solar activities, from sunspots to promi- occurs about seventy times every century. nences and solar winds. Students will also discover the genesis of the These programs focus on the inner solar sys- Next, Inner Solar System: Mercury dramatic natural light shows created by tem - the celestial region stretching from the takes us to the baked, rocky planet closest to electrically charged particles in the solar Sun and its closest planet, Mercury, to Mars, the Sun. Smallest of the terrestrials, Mercury winds - the aurora borealis. Earth’s closest neighbor. Also featured are a speeds around the Sun in a wildly elliptical Inner Solar System: Mars intro- close-up look at Earth’s moon and an explo- orbit that takes it as close as 47 million kilo- duces students to the world humans may visit ration of the spectacular phenomena of meters and as far as 70 million kilometers next. The red planet Mars has inspired wild eclipses and the aurora borealis. As its cen- from the Sun. How planets and the planetary flights of imagination over the centuries, as tral theme, the SpaceFiles Series: Inner Solar system formed is explained and illustrated in well as intense scientific interest. Mars is a System provides an in-depth examination of this program. small rocky body once thought to be very the origins, physical characteristics, move- Inner Solar System: Venus brings Earth-like. Discovery of vast, frozen under- ment, and relative position of each terrestrial us to a lifeless world shrouded in cloud. At ground water deposits has stirred hope that, planet, our system’s star, and Earth’s moon. first glance, if Earth had a twin, it would be despite the severity of its surface and atmos- The likelihood of current or past life-form Venus. The two planets are similar in size, pheric conditions, life exists in some form on existence is also discussed. mass, composition, and distance from the the red planet. Sun. But there the similarities end. Venus is a Overview planet suffering from a run-away green- Objectives house effect, with a choking atmosphere and The SpaceFiles Series encompasses the fun- temperatures hot enough to melt lead. damentals of space and astronomy. The Inner Solar System: Earth, explores Inner Solar System titles deal with the Sun, our home planet - third planet from the Sun the terrestrial planets, Earth’s • To explore the Sun, Moon, and terrestrial planets of our solar system • To examine the origins, size, moon, and the fifth largest in the Solar System. temperature, and physical properties of eclipses, and the phenomenon of the aurora Positioned at nearly 150 million kilometers the Sun borealis. from the Sun, and situated in the center of Note: Many of the activities and the habitable zone as we understand it, assessments contained in this teaching mod- Earth is the only planet in our Solar System ule may be used with all seven programs in known to harbor life - life that is incredibly the SpaceFiles - The Inner Solar System diverse. • To discuss the origins and observe the unique surface and atmospheric features of each celestial body • To learn about the size and relative position of each planet in the inner series. Other additional activities and con- Inner Solar System: The Moon pre- sumables are meant for specific Inner Solar sents the origins of Earth’s only natural satel- System videos, and are labeled as such. lite. The regular daily and monthly rhythms solar system • To discuss the characteristics of Earth that allow for life The Inner Solar System: The Sun of this small, yet vital celestial partner have begins at the center of things: our system’s guided timekeepers for thousands of years. own star. The Sun is the energy source that Its influence on Earth’s cycles, notably tides, powers the Earth and has inspired mythol- has been charted by many cultures in many ogy in almost all cultures, including the ages. The Moon’s lunar phases, effects on astronomy and further exploration of ancient Native Earth’s tides, elemental characteristics, and the solar system and beyond Americans, and Chinese. It is a huge, bright topography are examined, along with scien- sphere of mostly ionized gas, about 5 billion tific data gathered from the lunar explo- years old, and is the closest star to Earth at rations of astronauts. Egyptians, Aztecs, a distance of about 150 million kilometers. Inner Solar System: Eclipses and In addition to discussing the elemental com- Auroras offers students spectacular images position of the Sun, the program details of a total eclipse of the Sun, an event which • To examine the phenomena of solar and lunar eclipses, solar flares, and the aurora borealis • To encourage a deeper appreciation of 7 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Introduction to the Program Discussion Ideas Ask students to share what they know about Ask one or more of the following questions the origins of the Sun and planets in the to prompt discussion about space explo- solar system. Review with students the names ration: What are the necessary components of the nine planets and their positions rela- to sustain life on Earth? (These should tive to the Sun. Ask students what area in our include atmosphere, light, heat, cold, water, solar system lies between Mars and Jupiter soil, and air, all occurring in delicate bal- (the asteroid belt). Explain to students that ance.) What role does the Sun play in sus- the program they will be viewing involves taining life? Why do you think it is important the inner solar system - the Sun and the four to understand the Sun and the other planets planets orbiting between the Sun and the in our solar system? What potential do you asteroid belt (also called the terrestrial plan- think there is for finding life on other planets, ets). either within our solar system or somewhere else in the universe? Explain your response. Introduction to Vocabulary The following words are referenced in The Focus Inner Solar System videos. Write the terms on the board; ask the class to discuss the Encourage students to watch for similarities meaning of each word, and review the terms and differences between other planets and that are unfamiliar to students. You may wish Earth’s moon and Earth itself, such as size, to have students look up terms in a dictio- rotational direction, composition, atmos- nary or encyclopedia. phere, and potential to support life. Ask them to keep in mind each celestial body’s axis position relative to the Sun and the effect of Celsius (32∫ Fahrenheit = 0 ∫ Celsius, or that positioning. freezing point; 212∫ F = 100∫ C, or boiling point) diameter kilometer (equals 0.6214 miles, or 1 mile = 1.609 kilometers) moon orbit planet planetesimal (one of the many small, solid celestial bodies thought to have existed at an early stage in the development of the solar system) rotation solar system star terrestrial topography 8 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 SUGGESTED ACTIVITIES All Inner Solar System Programs Meeting Individual Needs Following the viewing of each program, ask students to recall some of the highlights and specific information presented. List their responses on the board. Clarify information as needed. If necessary, provide suggestions of your own to trigger additional responses and stimulate discussion. 30 Minutes All Inner Solar System Programs Connection to Social Studies SO CI AL ST UD IE S There is an on-going controversy concerning the value of space exploration. Some people believe that such exploration is a needless waste of money, a drain on our Federal budget, and has produced little that benefits the dayto-day life of the individual. Others would argue that valuable information is being gathered, inventions and 45 Minutes technology are being developed that find application in our day-to-day lives, and such exploration may potentially provide answers and solutions to pressing questions and problems right here on Earth. Have students research the pros and cons of space exploration. Organize a class debate to discuss these issues. All Inner Solar System Programs LIT ERA TUR Connection to Literature/Arts and Humanities In many cultures, the population’s ancestors believed that the sky was the home of gods, goddesses, and other supernatural beings. The planets themselves were thought to be these immortal creatures. We still use their names 60 Minutes for the planets and moons today. Using library, Internet or other resources, have students research the mythology of different cultures associated with the Sun, Mercury, Venus, Earth, the Moon, and Mars. More advanced students may wish to research how the early Greeks attempted through their myths to explain the movement of heavenly bodies. Have students share their findings in an informal discussion or through presentation of oral reports. Discuss with students how such myths originated as our ancestors attempted to understand the world. All Inner Solar System Programs Critical Thinking There have been a number of theories concerning the origins of the solar system. For example, in the late 1700s, French scientist Comte de Buffon suggested that a giant comet passing the Sun pulled out the matter from which the solar system emerged. Over time, other theories have been formulated. Ask students to research some of these theories to learn more about them. 45 Minutes Following their research, organize a class discussion or debate which allows students to present the theories they support or find most interesting. Encourage students to provide scientific evidence for their choices. 9 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 E ART All Inner Solar System Programs Connection to Science and History HI ST OR Y SC IE NC E Since scientific study of the cosmos began, there have been a number of objects that were once thought to exist by astronomers, but which later “vanished.” Student may readily associate some of their names with people and places in today’s popular science fiction. They include: Vulcan - the intra-Mercurial planet; Mercury’s moon; Neith 45 Minutes - the moon of Venus; Earth’s supposed second moon; the first theoretical moons of Mars; and Nemesis - the Sun’s “companion star.” Have students research these or other hypothetical planets and “vanished” objects. Internet sites such as http://www.seds.org/nineplanets/nineplanets/hypo.html are excellent sources of information. Ask students to share their findings in a general class discussion. Students should understand what led to the faulty identification of an object, and what, if any, contribution the event made to future understanding of the universe. All Inner Solar System Programs Extended Activity Provide students with the names of the space probes mentioned in the programs (see list below). Individually or in small groups, have students prepare a multimedia presentation that includes pictures of the space probe, the sig- Extended nificance of its name, the launch date, its purpose, its discoveries, and some images sent back to Earth. Conclude with an analysis of the success or failure of the space probe. Mariner 10 Venera 7 (1970s Russian space probe to Venus) Magellan Mars Global Surveyor Mars Odyssey Mars Express The Apollo Missions As an alternative, students may wish to report on planned space probes, such as Bepi-Colombo or Messenger (Mercury), or the Mars Exploration Rover project. Inner Solar System: The Sun Writing Why We Study the Sun: Ask students to prepare a report on the range of information that we gather from study of the Sun, as well as the application and importance of that information. The Internet is an excellent research tool for this activity. 60 Minutes Inner Solar System: Mercury Connection to Space Science SPACE SCIENCE In this program, the formation of Mercury is used to demonstrate the process by which other planets and our solar system were formed. Ask students to write a brief description of the process. Preliminary class discussion or research may be necessary. 45 Minutes 10 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Inner Solar System: Venus Connection to Literature LIT ERA TUR E Have students read the short story by Ray Bradbury entitled “The Long Rain” (a selection from his book “The Illustrated Man”). The story provides an excellent example of our perception of Venus before science revealed the true nature of the planet. Discuss the story in light of what is known today. How does current knowledge impact Extended the reader’s ability to enjoy stories such as this one? Inner Solar System: Earth Connection to Earth Science EA RT H SC IE NC E Before scientific exploration and discovery revealed the true physical make-up of our neighboring planets, we imagined the surface of Venus and Mars to be populated by fantastic creatures living in cloud-shrouded jungles or arid deserts. Then robotic spacecrafts showed us images of barren vistas, seemingly inhospitable to life, and dashed all hope of finding extraterrestrial life. However, recent discoveries on our own planet have revealed that 45 Minutes life exists on the Earth under the most “unlifelike” conditions. For example, we have discovered anaerobic life, and life existing in all temperature extremes, in toxic gas environments, inside a rock, or in a pool of acid. Using the library and Internet resources, have students research recent discoveries of life forms which exist under unexpected and extreme conditions on Earth, and have them present their findings to the rest of the class. This may be done during a general class discussion or as a formal oral report. Inner Solar System: Earth Writing Using the information gathered in the Connection to Earth Science research on life forms which exist under extreme conditions, discuss the possibility of life existing in some form on one of the other planets of the inner solar system. Next, ask students to write a short fiction story with this topic as its theme. Have students present finished stories to Extended the class. Teachers may wish to compile and photocopy the stories to create a class science fiction short story booklet. Inner Solar System: The Moon LIT ERA TUR Connection to Literature The Moon continues to be a rich source of inspiration for science fiction authors. Provide students with an age/grade level appropriate list of short stories or novels by renowned science fiction authors such as H. G. Wells, Jules Verne, Ray Bradbury, Isaac Asimov, Arthur C. Clarke, or Robert A. Heinlein. After reading the selected story Extended or novel, have students prepare a book review of the work. Inner Solar System: The Moon Hands On Making a Crater - Class Demonstration: Items needed: 9x12 inch cake pan; dry Plaster of Paris powder; dry Portland Cement powder; tablespoon. 15 Minutes Fill a 9x12 inch cake pan with dry Plaster of Paris powder (not wet). The plaster powder needs to be 11/2 to 2 inches deep. Put the pan of dry plaster powder on the floor, or on the ground if you choose to conduct this demonstration out of doors. Take a heaping tablespoon of dry Portland Cement powder (readily available in any hardware store). Hold the heaping tablespoon of cement 3 to 4 feet over the pan and dump it all in one motion into the pan. (The aim is to dump it as one lump.) The result is a beautifully created “moon crater”, complete with ray structures and center peak. 11 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 E Inner Solar System: Eclipses and Auroras Connection to Space Science/Hands On SPACE SCIENCE There are certain safety procedures people must follow when viewing an eclipse. Have students research eclipse observation tips, precautions and methods, then share their findings in a general discussion of the topic. Next, Extended using the Internet as a resource, have students find a listing for upcoming eclipses. If possible, involve the class in observation of an eclipse. As an additional activity, teachers may wish to help students construct their own pinhole projector for viewing the event. Inner Solar System: Mars SPACE SCIENCE Connection to Space Science/Writing Mars may well be the next planet on which humans walk and which they will possibly inhabit. The first step in making any planet habitable is terraforming. Have students research the topic of terraforming and its application to Mars. The Internet is an excellent source of information. Then ask students to prepare a report in which they dis- 60 Minutes cuss the procedure as well as the feasibility of terraforming the planet. As an alternative to a report, ask students to write a short science fiction story which involves the terraforming of Mars. All Inner Solar System Programs Culminating Activity If possible, arrange for students to visit a planetarium or a museum that has a space exhibit. As an alternative, ask a local astronomer to speak to the class about his or her experience and observations, or arrange for a traveling planetary show to visit your school. Following the activity of choice, discuss with students what they learned, most enjoyed, or found the most interesting about the experience. 12 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Extended Name ALL INNER SOLAR SYSTEM PROGRAMS INNER SOLAR SYSTEM FACT SHEET Use copies of the following form to outline important information gathered on each planet or other celestial body explored in the program. (NOTE: some information fields may not be applicable to all program topics.) 1. Name of planet or celestial body: ______________________________________________________________________________________ 2. Type of celestial body: (i.e., planet, star, moon, etc.) ________________________________________________________________________ 3. Position in the solar system relative to the Sun: ____________________________________________________________________________ 4. Position in the solar system relative to Earth: ______________________________________________________________________________ 5. Diameter: __________________________________________________________________________________________________________ 6. Topography (general): ________________________________________________________________________________________________ 7. Three major geographic features: ______________________________________________________________________________________ 8. Atmosphere: ________________________________________________________________________________________________________ 9. Weather: ____________________________________________________________________________________________________________ 10. Temperature range: __________________________________________________________________________________________________ 11. Period of rotation: __________________________________________________________________________________________________ 12. Period of orbit (revolution around the Sun): ______________________________________________________________________________ 13. Space craft and/or mission involved in exploration: ______________________________________________________________________ 14. Potential for life: ____________________________________________________________________________________________________ 13 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name ALL INNER SOLAR SYSTEM PROGRAMS WORD SEARCH The following words can be found in the maze below. The letters may be arranged horizontally, vertically, diagonally, or backwards. S Z Q H D V J Z G X Y M W V H B T E N A L P W K O R B I T Z Z X A Y Q M V H D N Z G J E M W R N R Z K B C V X P Q K R Y Q O V G Y Q D I A M E T E R J B T Z J C H M X W Z N Y S E B S A N C E N I Q K R A L O S Z Z T Y H L S B J Z M X V M T J K I J V S W V G X Q Y H Z R W M O O N I Z R E T E M O L I K G N L Y U V X Q S K V Y G A Q Z W J K S G B Z J R A N U L H H Y X Z B Q N M Q W G Z B V J B T O P O G R A P H Y H Q Y Z V Z W L A M I S E T E N A L P WORD BANK axis Celsius diameter kilometer lunar moon orbit planet planetesimal rotation solar star terrestrial topography 14 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: THE SUN CHECKING COMPREHENSION Using words from the Word Bank below, fill in the blanks in the following sentences. NOTE: Some words will NOT be used. 1.4 million asteroids chromosphere helium magnetic moons nuclear planet prominences solar wind sunspots universe 15,000,000 billion corona hydrogen million nitrogen photosphere planets solar system star umbra 1. The Sun is a _______________________________, and is by far the largest object in the _______________________________. 2. The Sun’s diameter is _______________________________ kilometers. 3. The Sun is about 5 _______________________________ years old. 4. The mass of the Sun is made up almost entirely of _______________________________ and _______________________________ gases. 5. The surface temperature is almost 6000 ˚C, and the core is approximately _______________________________ ˚C. 6. The surface, or outer visible layer, of the Sun is called the _______________________________ 7. Darker-appearing regions on the Sun’s surface are _______________________________. 8. The dark center of a sunspot is called the _______________________________. 9. A small region known as the _______________________________ lies above the photosphere, and above this is a region called the _______________________________. 10. The core of the Sun is a _______________________________ reactor. 11. _______________________________ are usually associated with regions of sunspot activity. They are bright, cloud-like features that may reach high into the corona, often as graceful loops that may hang suspended for many days. 12. These graceful billows of gas are fuelled by _______________________________ surges beneath, and loop along magnetic force lines. 13. In addition to heat and light, the Sun emits a low-density stream of charged particles know as the _______________________________. 14. The satellites of the Sun consist of nine _______________________________. 15 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: THE SUN TRUE OR FALSE Read the following statements. Place a T next to statements that are true, and an F next to statements that are false. 1. ________ Energy released at the Sun’s core takes at least a hundred thousand years to reach the Sun’s surface. 2. ________ Energy produced by the Sun takes 24 hours to reach Earth’s surface. 3. ________ The mass of the Sun comprises nearly two-thirds of the total mass of the solar system. 4. ________ Over a million Earths would fit inside the Sun. 5. ________ Every 11 years, the magnetic fields of the Sun reverse. 6. ________ The Sun’s equator spins more slowly than its poles. 7. ________ The outer atmosphere, or corona, of the Sun is cooler than the lower chromosphere or photosphere. 8. ________ The solar wind blows at upwards of 400 kilometers a second. 9. ________ An audio picture of the Sun’s interior reveals that the Sun throbs in regular five-minute beats. 10. ________ In about 5 million years, the Sun’s balance of radiation pushing out and gravity pushing in will be gone. 11. ________ At that time, the Sun will begin to shrink in size. 12. ________ Eventually the Sun will collapse to the size of our moon. 13. ________ The Sun will first become a red giant, then a white dwarf. 14. ________ Eventually, our solar system will become nine dead planets orbiting a black dwarf star. 16 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: THE SUN TEST Circle the letter of the correct answer for each question. 1. The mass of the Sun is made up of: a) nitrogen and oxygen. b) hydrogen and helium. c) helium and metals. d) all of the above. 2. The energy produced by the Sun takes: a) 20 seconds to reach Earth. b) 1 minute 8 seconds to reach Earth. c) 24 hours to reach Earth. d) 8 minutes 20 second to reach Earth. 3. The mass of the Sun comprises: a) 50% of the solar system. b) two-thirds of the solar system. c) 99.8% of the solar system. d) four-fifths of the solar system. 4. The surface of the Sun is called the: a) photosphere. b) corona. c) umbra. d) chromosphere. 5. The poles of the Sun rotate: a) at the same speed as the equator. b) once every 34 days. c) once every 25 days. d) faster than the equator. 17 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: MERCURY CHECKING COMPREHENSION - SHORT ANSWER QUESTIONS Answer each of the following questions in one or two sentences. Please use full sentences. 1. What is Mercury’s relative size and position in the solar system? ____________________________________________________________ ______________________________________________________________________________________________________________________ 2. How far is Mercury from the Sun? ______________________________________________________________________________________ ______________________________________________________________________________________________________________________ 3. How do the terrestrial planets like Mercury differ in composition from the larger planets such as Jupiter? __________________________ ______________________________________________________________________________________________________________________ 4. What are planetesimals? ______________________________________________________________________________________________ ______________________________________________________________________________________________________________________ 5. How does the size of a planet body affect its gravitational pull?______________________________________________________________ ______________________________________________________________________________________________________________________ 6. How does Mercury’s solar orbit compare to Earth’s? ______________________________________________________________________ ______________________________________________________________________________________________________________________ 7. What was Mariner 10’s mission? ______________________________________________________________________________________ ______________________________________________________________________________________________________________________ 8. What technique for space travel did Mariner 10 first use? __________________________________________________________________ ______________________________________________________________________________________________________________________ 9. What are the unique characteristics of Mercury’s rotation and solar orbit? ____________________________________________________ ______________________________________________________________________________________________________________________ 10. Mercury’s iron core makes up 70% of its volume. What is the possible explanation for this? ____________________________________ ______________________________________________________________________________________________________________________ 11. Why do scientists believe there may be permanent ice deposits on Mercury?__________________________________________________ ______________________________________________________________________________________________________________________ 12. What more do scientists hope to learn from Mercury through various probes and fly-bys? ______________________________________ ______________________________________________________________________________________________________________________ 18 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: MERCURY TEST Circle the letter of the correct answer for each question. 1. In the formation of the solar system, the terrestrial planets: a) were composed of the heaviest elements. b) were less dense than the outer planets like Jupiter. c) were the only forming bodies with any gravitational pull. d) A and C 2. Mercury has a solar orbit of: a) 28 days. b) 225 days. c) 88 days. d) 365 days. 3. The Earth is _____ more massive than Mercury. a) 10 times b) 18 times c) 13 times d) 25 times 4. A day on Mercury would equal: a) 88 Earth days. b) 2 Earth days. c) 176 Earth days. d) 18 Earth days. 5. Mercury’s core is composed of: a) iron. b) molten lava. c) unknown metals. d) nickel. 19 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: VENUS CHECKING COMPREHENSION PART A: Read each statement below. Underline the word or phrase in parentheses that correctly completes each statement. Cross out the incorrect word(s) or phrase(s). NOTE: There may be more than two choices. Cross out all incorrect choices. Example: Billions of years ago, Venus may have been a planet of (oceans) (lava) in which microbial life could evolve. 1. The planet which orbits between Venus and the Sun is (Earth) (Mars) (Mercury). 2. The orbit of Venus makes the planet highly visible from Earth (just before dawn) (just before sunset). 3. Venus takes (88) (225) days to orbit the Sun. 4. The basic measurement for scaling the cosmos was initially used by (astronomer) (explorer) James Cook. 5. This measurement is based on the distance (between planets) (from Earth to the Sun) (from Earth to Venus). 6. Radar signals bounced through Venusian clouds have revealed that Venus rotates (slowly) (irregularly) (quickly). 7. The rotation of Venus is (similar to) (in the opposite direction of) Earth’s rotation. 8. Venus turns once on its axis every (24 hours) (88 days) (243 days). PART B: Short Answer Questions On a separate piece of paper answer each of the following questions in one or two sentences. Please use full sentences. 1. In 1970, the Russians soft-landed a probe on Venus. What did it reveal about the landscape? 2. What do we know about Venus’ atmosphere and surface temperature? 3. What did America’s Magellan spacecraft accomplish in the 1990s? 4. What probably causes the coronae formations on Venus? 5. Why are impact craters less commonly found on Venus as compared to Mercury or the Moon? 6. On Venus, what conditions combine to produce “pancake domes”? 7. Four billion years ago, Venus may have been able to sustain life. What may have turned it into the planet we know today? 20 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: VENUS TEST Circle the letter of the correct answer for each question. 1. Venus is a planet very similar in size to: a) Mercury. b) Mars. c) Earth. d) Earth’s moon. 2. The orbit of Venus around the Sun takes: a) 88 Earth days. b) 225 Earth days. c) 365 Earth days. 4) 157 Earth days. 3. Venus was named after: a) the Greek messenger of the gods. b) the Greek goddess of mystery. c) the Greek goddess of swamps. d) the Greek goddess of love and beauty. 4. The atmosphere of Venus: a) is over 90 times denser than that of Earth. b) blankets the planet, trapping in heat. c) makes Venus the hottest planet. d) all of the above. 5. The rotation of Venus: a) is in the opposite direction to that of Earth. b) matches the speed of Earth’s rotation. c) takes about 24 hours. d) all of the above. 21 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: EARTH CHECKING COMPREHENSION PART A: Short Answer Questions Please use full sentences to answer each of the following questions. 1. What portion of the Earth’s surface is land? ______________________________________________________________________________ 2. Where did life most likely begin on Earth?________________________________________________________________________________ 3. Today, Earth is home to approximately how many human beings? ____________________________________________________________ 4. Briefly, what effect has humankind had on Earth’s environment? ______________________________________________________________ 5. What do Earth’s volcanic eruptions tell us about our planet’s core? __________________________________________________________ 6. Earth’s crust is like a cracked eggshell. What do the cracks indicate?__________________________________________________________ 7. What happens when Earth’s plates interact? ______________________________________________________________________________ PART B: Fill In The Blank From the Word Bank below, fill in the missing information in the following statements. NOTE: Not all words will be used. 1. 24 hours largest nickel crust iron moon coldest magnetic field million billion liquid outer core third 365 days lead solid inner core first mantle Earth is the ______________________________ inner planet, ______________________________ from the Sun, and first with a ______________________________. 2. Earth’s rotation takes ______________________________, and its solar orbit takes ______________________________. 3. Earth’s distance from the Sun is 150 ______________________________ kilometers. 4. The top layer of the Earth is called the ______________________________, below which is the ______________________________ - a mix of partially melted and solid rock. 5. Next comes the layer called the ______________________________. 6. The solid inner core is a slowly rotating heart of ______________________________ and ______________________________. 7. The rotation of the solid inner core is thought to be the dynamo generating the Earth’s ______________________________. 22 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: EARTH CAUSE AND EFFECT Certain planetary conditions and events have specific origins. Read each of the following outcomes. In the space provided, briefly explain what would be the origin or cause of each. Example: Observable outcome: volcanic eruption Underlying cause: release of heat from Earth’s core through release of lava 1. Observable outcome: earthquakes Underlying cause: ______________________________________________________________________________________________________ 2. Observable outcome: the changing map of the Earth Underlying cause: ______________________________________________________________________________________________________ 3. Observable outcome: mountain ranges such as the Alps Underlying cause: ______________________________________________________________________________________________________ 4. Observable outcome: apparent movement of the Sun across the sky Underlying cause: ______________________________________________________________________________________________________ 5. Observable outcome: varying lengths of day and night throughout the year Underlying cause: ______________________________________________________________________________________________________ 6. Observable outcome: winter in the northern hemisphere Underlying cause: ______________________________________________________________________________________________________ 7. Observable outcome: global weather patterns Underlying cause: ______________________________________________________________________________________________________ 8. Observable outcome: wind Underlying cause: ______________________________________________________________________________________________________ 9. Observable outcome: equatorial rainforests Underlying cause: ______________________________________________________________________________________________________ 10. Observable outcome: a new ice age Underlying cause: ______________________________________________________________________________________________________ 23 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: EARTH TEST Circle the letter of the correct answer for each question. 1. The dominant feature on Earth’s surface is: a) its six continents. b) its cities and man-made structures. c) its great mountain ranges. d) its vast bodies of water. 2. The distance from Earth to the Sun is: a) 150 million kilometers. b) 108 million kilometers. c) 150 billion kilometers. d) 58 billion kilometers. 3. The Earth’s crust is thickest: a) beneath the continents. b) under the oceans. c) at the two poles. d) where continental plates meet. 4. The inner core of Earth is: a) a mix of partially melted and solid rock. b) molten lava. c) iron and nickel. d) all of the above. 5. Mountain ranges, like the Alps, are the result of: a) continental plates pulling apart. b) continental plates pulling and pushing. c) earthquakes and volcanoes. d) continental plates crashing together. 24 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: THE MOON CHECKING COMPREHENSION PART A: Read each statement below. Underline the word or phrase in parentheses that correctly completes each statement. Cross out the incorrect word(s) or phrase(s). NOTE: There may be more than two choices. Cross out all incorrect choices. Example: At the time of the Moon’s formation, its orbit was (10) (20) (30) times closer to Earth than it is today. 1. In one orbit of Earth, the Moon turns (once) (twice) on its axis. 2. The diameter of the Moon is (one third) (one quarter) (one fifth) that of Earth. 3. The Moon takes (30 days) (27 1⁄3 days) (29 1⁄2 days) to orbit Earth. 4. When the face of the Moon is completely dark, we call this lunar phase (the New Moon) (the Full Moon). 5. Lunar gravity is (1⁄3) (1⁄8) (1⁄6) that of Earth. 6. The gravitational pull exerted by the Moon on our oceans is called (high tide) (tidal drag) (tidal gravity). PART B: Short Answer Questions Use a separate sheet of paper to answer each of the following questions. Please use full sentences. 1. How were the mare or “seas” on the Moon formed? 2. How do mare differ from craters created by recent impacts? 3. On the Moon, why do a hammer and a feather fall at the same speed? 4. How have scientists determined that the Moon’s interior is probably a solid, metallic core? 5. How do scientists measure the change in distance between the Moon and Earth? 6. What are the two main effects that the Moon’s gravitational pull has on the Earth? 25 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: THE MOON TRUE OR FALSE Read the following statements. Place a T next to statements that are true, and an F next to statements that are false. 1. ________ Scientists believe that Earth’s impact with another celestial body may have provided the material which formed its moon. 2. ________ This impact is thought to have been a single collision. 3. ________ The Earth would have been approximately 50 million years old at the time. 4. ________ The surface condition of the Earth would have been much like it is today. 5. ________ At the time the Moon first formed, it was about 10 times closer to Earth than it is today. 6. ________ The Moon always presents the same face to Earth. 7. ________ The Moon has no light of its own. 8. ________ New craters on the Moon’s surface are formed by volcanic activity. 9. ________ The Moon has no gravity of its own. 10. ________ Scientists believe that the Moon’s interior is probably solid, with a metallic core. 11. ________ The Moon’s core is relatively large when compared to Earth’s core. 12. ________ Twice a day, around the globe, tides rise and fall as the Moon tugs on the oceans. 13. ________ The gravitational pull exerted by the Moon helps to keep Earth’s axial rotation steady. 14. ________ The Moon is growing closer to Earth by about 3 centimeters a year. 26 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: THE MOON TEST Circle the letter of the correct answer for each question. 1. The distance from the Earth to the Moon is approximately: a) 384 million kilometers. b) 3500 kilometers. c) 384,000 kilometers. d) 150 million kilometers. 2. The Moon has no: a) core. b) gravity. c) light of its own. d) all of the above. 3. The mare of the moon are: a) basins gouged by impacts. b) oceans. c) volcanoes. d) lava channels. 4. On the Moon, a hammer and feather fall at the same speed because: a) there is gravity on the Moon. b) there is no air resistance. c) lunar gravity creates air resistance. d) the two items weigh the same on the Moon. 5. The gravitational pull exerted by the Moon on Earth’s oceans is called: a) tidal gravity. b) tidal rise and fall. c) tidal drag. d) tidal influence. 27 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: ECLIPSES AND AURORAS CHECKING COMPREHENSION PART A: Fill In The Blank From the Word Bank below, fill in the missing information in the following statements. NOTE: Not all words will be used. 20 Earth corona 70 Sun Moon dark side annular umbra penumbra Lunar 400 sunny side 1. A solar eclipse occurs when the ___________________________ aligns directly between the (insert blank) and the Sun. 2. A total eclipse can occur because the Moon is 400 times smaller than the ___________________________, and ___________________________ times closer to Earth than the Sun. 3. To witness a solar eclipse, you must be on the ___________________________ of the Earth. 4. A total eclipse occurs about ___________________________ times a century. 5. When the Earth directly aligns between the Moon and the Sun, it is called a/an ___________________________ eclipse. 6. When the full shadow of the Moon touches Earth, the center of that shadow is called the ___________________________. 7. At the peak of a solar eclipse, the Sun’s ___________________________, which is normally invisible to the naked eye, can be seen. PART B: Short Answer Questions Use a separate sheet of paper to answer each of the following questions. Please use full sentences. 1. Where do auroras mainly occur? 2. From what source do auroras originate? 3. What are the main components of solar wind? 4. What role does Earth’s magnetic field play in creating an aurora? 5. What is the term for this magnetic field? 6. What role do force lines play in creating an aurora? 7. What produces the light of an aurora? 8. What effect do solar flares have on the Earth? 28 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: ECLIPSES AND AURORAS TEST Circle the letter of the correct answer for each question. 1. When the Moon aligns directly between the Earth and the Sun: a) there is a lunar eclipse. b) this creates an annular eclipse. c) a total solar eclipse occurs. d) the aurora borealis is more clearly visible. 2. The imaginary plane containing the Earth’s orbit around the Sun is called: a) the eclipse. b) the ecliptic. c) the orbit. d) the orbital tilt. 3. When the Moon is close enough for a full shadow to touch Earth, the center of that shadow is called: a) the umbra. b) the penumbra. c) the corona. d) eclipse totality. 4. The Sun’s continuous flow of tenuous gas and electrically charged particles is called: a) the aurora. b) the magnetic field. c) a coronal mass ejection. d) the solar wind. 5. The magnetic field around Earth is called: a) the aurora borealis. b) the upper atmosphere. c) the magnetosphere. d) a force line. 29 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: MARS CHECKING COMPREHENSION Please use full sentences to answer each of the following questions. 1. Which terrestrial planet is Mars’ closest neighbor? ________________________________________________________________________ 2. Which terrestrial planet is Mars’ furthest neighbor? ________________________________________________________________________ 3. What is the star closest to Mars? ________________________________________________________________________________________ 4. How does the size and mass of Mars compare to that of Earth? ______________________________________________________________ 5. How does a Martian day compare to an Earth day? ______________________________________________________________________ 6. How does a Martian year compare to an Earth year? ______________________________________________________________________ 7. What is the distance from Mars to the Sun? ______________________________________________________________________________ 8. What is the range of temperatures on Mars? ______________________________________________________________________________ 9. What feature on Mars is the largest geological fault in the solar system? ______________________________________________________ 10. Why is the Mars sky pink in appearance? ______________________________________________________________________________ 11. What evidence do we see today that Mars may once have flowed with water? ________________________________________________ ______________________________________________________________________________________________________________________ 12. What could have happened to much of that water once volcanic activity on the planet subsided? ________________________________ ______________________________________________________________________________________________________________________ 13. What is the objective of current scientific study of Mars? __________________________________________________________________ 14. Why are scientists particularly interested in studying Mars? ________________________________________________________________ 30 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 Name INNER SOLAR SYSTEM: MARS TEST Circle the letter of the correct answer for each question. 1. Mars’ nearest terrestrial neighbor is: a) Jupiter. b) Earth. c) Venus. d) the Sun. 2. A Martian year is: a) twice as long as a year on Earth. b) half as long as a year on Earth. c) about the same as a year on Earth. d) about the same as a year on Earth’s moon. 3. Many of the surface features of Mars show evidence of: a) life. b) floods. c) sub-surface ice. d) geothermal springs. 4. The color of Mars is red due to: a) iron oxide in the soil. b) red dust in the atmosphere. c) the extreme heat on the surface. d) reflected sunlight. 5. The presence of hydrogen among Mars’ sub-surface elements is a sign that: a) there is life on Mars today. b) there was life on Mars in the past. c) there is ice beneath Mars’ surface. d) life cannot exist on Mars. 31 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ADDITIONAL AIMS MULTIMEDIA PROGRAMS You and your students might also enjoy these other AIMS Multimedia programs: #2590-EN-VID #8060-EN-VID #8481-EN-VID #8482-EN-VID #8284-EN-VID #9084-EN-VID #8480-EN-VID #8724-EN-VID #9082-EN-VID Astronomy: Facts and Fun Exploring Our Solar System Journey to the Moon The Pilots and the Astronauts Solar Activity The Solar System: Our Neighbors in Space Space Probes and Starships Top Flight The Universe: The Vast Frontier 32 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 12 ALL INNER SOLAR SYSTEM PROGRAMS INNER SOLAR SYSTEM FACT SHEET Use copies of the following form to outline important information gathered on each planet or other celestial body explored in the program. (NOTE: some information fields may not be applicable to all program topics.) INFORMATION WILL VARY ACCORDING TO PLANET, STAR, OR MOON SELECTED. 1. Name of planet or celestial body: ______________________________________________________________________________________ 2. Type of celestial body: (i.e., planet, star, moon, etc.) ________________________________________________________________________ 3. Position in the solar system relative to the Sun: ____________________________________________________________________________ 4. Position in the solar system relative to Earth: ______________________________________________________________________________ 5. Diameter: __________________________________________________________________________________________________________ 6. Topography (general): ________________________________________________________________________________________________ 7. Three major geographic features: ______________________________________________________________________________________ 8. Atmosphere: ________________________________________________________________________________________________________ 9. Weather: ____________________________________________________________________________________________________________ 10. Temperature range: __________________________________________________________________________________________________ 11. Period of rotation: __________________________________________________________________________________________________ 12. Period of orbit (revolution around the Sun): ______________________________________________________________________________ 13. Space craft and/or mission involved in exploration: ______________________________________________________________________ 14. Potential for life: ____________________________________________________________________________________________________ 33 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 13 ALL INNER SOLAR SYSTEM PROGRAMS WORD SEARCH The following words can be found in the maze below. The letters may be arranged horizontally, vertically, diagonally, or backwards. S Z Q H D V J Z G X Y M W V H B T E N A L P W K O R B I T Z Z X A Y Q M V H D N Z G J E M W R N R Z K B C V X P Q K R Y Q O V G Y Q D I A M E T E R J B T Z J C H M X W Z N Y S E B S A N C E N I Q K R A L O S Z Z T Y H L S B J Z M X V M T J K I J V S W V G X Q Y H Z R W M O O N I Z R E T E M O L I K G N L Y U V X Q S K V Y G A Q Z W J K S G B Z J R A N U L H H Y X Z B Q N M Q W G Z B V J B T O P O G R A P H Y H Q Y Z V Z W L A M I S E T E N A L P WORD BANK axis Celsius diameter kilometer lunar moon orbit planet planetesimal rotation solar star terrestrial topography 34 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 14 INNER SOLAR SYSTEM: THE SUN CHECKING COMPREHENSION Using words from the Word Bank below, fill in the blanks in the following sentences. NOTE: Some words will NOT be used. 1.4 million asteroids chromosphere helium magnetic moons nuclear planet prominences solar wind sunspots universe 15,000,000 billion corona hydrogen million nitrogen photosphere planets solar system star umbra 1. The Sun is a star, and is by far the largest object in the solar system. 2. The Sun’s diameter is 1.4 million kilometers. 3. The Sun is about 5 billion years old. 4. The mass of the Sun is made up almost entirely of hydrogen and helium gases. 5. The surface temperature is almost 6000 ˚C, and the core is approximately 15,000,000 ˚C. 6. The surface, or outer visible layer, of the Sun is called the photosphere. 7. Darker-appearing regions on the Sun’s surface are sunspots. 8. The dark center of a sunspot is called the umbra. 9. A small region known as the chromosphere lies above the photosphere, and above this is a region called the corona. 10. The core of the Sun is a nuclear reactor. 11. Prominences are usually associated with regions of sunspot activity. They are bright, cloud-like features that may reach high into the corona, often as graceful loops that may hang suspended for many days. 12. These graceful billows of gas are fuelled by magnetic surges beneath, and loop along magnetic force lines. 13. In addition to heat and light, the Sun emits a low density stream of charged particles know as the solar wind. 14. The satellites of the Sun consist of nine planets. 35 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 15 INNER SOLAR SYSTEM: THE SUN TRUE OR FALSE Read the following statements. Place a T next to statements that are true, and an F next to statements that are false. 1. T ________ Energy released at the Sun’s core takes at least a hundred thousand years to reach the Sun’s surface. 2. F ________ Energy produced by the Sun takes 24 hours to reach Earth’s surface. 3. F ________ The mass of the Sun comprises nearly two-thirds of the total mass of the solar system. 4. T ________ Over a million Earths would fit inside the Sun. 5. T ________ Every 11 years, the magnetic fields of the Sun reverse. 6. T ________ The Sun’s equator spins more slowly than its poles. 7. F ________ The outer atmosphere, or corona, of the Sun is cooler than the lower chromosphere or photosphere. 8. T ________ The solar wind blows at upwards of 400 kilometers a second. 9. T ________ An audio picture of the Sun’s interior reveals that the Sun throbs in regular five-minute beats. F 10. ________ In about 5 million years, the Sun’s balance of radiation pushing out and gravity pushing in will be gone. F 11. ________ At that time, the Sun will begin to shrink in size. F 12. ________ Eventually the Sun will collapse to the size of our moon. T 13. ________ The Sun will first become a red giant, then a white dwarf. T 14. ________ Eventually, our solar system will become nine dead planets orbiting a black dwarf star. 36 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 16 INNER SOLAR SYSTEM: THE SUN TEST Circle the letter of the correct answer for each question. 1. The mass of the Sun is made up of: a) nitrogen and oxygen. b) hydrogen and helium. c) helium and metals. d) all of the above. 2. The energy produced by the Sun takes: a) 20 seconds to reach Earth. b) 1 minute 8 seconds to reach Earth. c) 24 hours to reach Earth. d) 8 minutes 20 second to reach Earth. 3. The mass of the Sun comprises: a) 50% of the solar system. b) two-thirds of the solar system. c) 99.8% of the solar system. d) four-fifths of the solar system. 4. The surface of the Sun is called the: a) photosphere. b) corona. c) umbra. d) chromosphere. 5. The poles of the Sun rotate: a) at the same speed as the equator. b) once every 34 days. c) once every 25 days. d) faster than the equator. 37 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 17 INNER SOLAR SYSTEM: MERCURY CHECKING COMPREHENSION - SHORT ANSWER QUESTIONS Answer each of the following questions in one or two sentences. Please use full sentences. 1. What is Mercury’s relative size and position in the solar system? Mercury is the closest planet to the Sun; it is the smallest of the planets -18 times smaller than Earth. 2. 3. How far is Mercury from the Sun? Mercury is 58 million kilometers from the Sun. How do the terrestrial planets like Mercury differ in composition from the larger planets such as Jupiter? Terrestrials are more solid, formed from heavy materials with a high melting point, in contrast to the great spheres of gas like Jupiter which are composed of lighter elements. 4. What are planetesimals? These are mini-planets which existed at an early stage in the development of the solar system. 5. How does the size of a planet body affect its gravitational pull? The bigger the body, the stronger its gravitational pull. 6. How does Mercury’s solar orbit compare to Earth’s? Mercury’s orbit takes 88 days; Earth’s takes 365. 7. What was Mariner 10’s mission? Mariner 10’s three fly-bys of Mercury photographed the surface and provided scientists with a pristine record of the early solar system. 8. What technique for space travel did Mariner 10 first use? It used a technique called “gravity assist” which used the pull of Venus as a push towards Mercury. 9. What are the unique characteristics of Mercury’s rotation and solar orbit? Its rotation is so slow that its day is twice as long as its year - 176 Earth days equals 1 day on Mercury. Mercury’s year is just 88 Earth days. 10. Mercury’s iron core makes up 70% of its volume. What is the possible explanation for this? Early in its history, Mercury may have been struck by a large planetesimal which blew off the planet’s outer mantle. 11. Why do scientists believe there may be permanent ice deposits on Mercury? Radar mapping suggests permanent ice deposits in deep craters at the poles. 12. What more do scientists hope to learn from Mercury through various probes and fly-bys? They hope to map more of the planet surface and to better understand what shaped the planet. 38 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 18 INNER SOLAR SYSTEM: MERCURY TEST Circle the letter of the correct answer for each question. 1. In the formation of the solar system, the terrestrial planets: a) were composed of the heaviest elements. b) were less dense than the outer planets like Jupiter. c) were the only forming bodies with any gravitational pull. d) A and C 2. Mercury has a solar orbit of: a) 28 days. b) 225 days. c) 88 days. d) 365 days. 3. The Earth is _____ more massive than Mercury. a) 10 times b) 18 times c) 13 times d) 25 times 4. A day on Mercury would equal: a) 88 Earth days. b) 2 Earth days. c) 176 Earth days. d) 18 Earth days. 5. Mercury’s core is composed of: a) iron. b) molten lava. c) unknown metals. d) nickel. 39 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 19 INNER SOLAR SYSTEM: VENUS CHECKING COMPREHENSION PART A: Read each statement below. Underline the word or phrase in parentheses that correctly completes each statement. Cross out the incorrect word(s) or phrase(s). NOTE: There may be more than two choices. Cross out all incorrect choices. Example: Billions of years ago, Venus may have been a planet of (oceans) (lava) in which microbial life could evolve. 1. The planet which orbits between Venus and the Sun is (Earth) (Mars) (Mercury). 2. The orbit of Venus makes the planet highly visible from Earth (just before dawn) (just before sunset). 3. Venus takes (88) (225) days to orbit the Sun. 4. The basic measurement for scaling the cosmos was initially used by (astronomer) (explorer) James Cook. 5. This measurement is based on the distance (between planets) (from Earth to the Sun) (from Earth to Venus). 6. Radar signals bounced through Venusian clouds have revealed that Venus rotates (slowly) (irregularly) (quickly). 7. The rotation of Venus is (similar to) (in the opposite direction of) Earth’s rotation. 8. Venus turns once on its axis every (24 hours) (88 days) (243 days). PART B: Short Answer Questions On a separate piece of paper answer each of the following questions in one or two sentences. Please use full sentences. 1. In 1970, the Russians soft-landed a probe on Venus. What did it reveal about the landscape? It revealed a landscape of volcanic rock and conditions so hostile that the lander was destroyed in minutes. 2. What do we know about Venus’ atmosphere and surface temperature? The atmosphere is over 90 times denser that Earth’s, and the surface temperature is 475 ˚C. 3. 4. What did America’s Magellan spacecraft accomplish in the 1990s? Using improved radar, 99% of the surface of Venus was mapped. What probably causes the coronae formations on Venus? Coronae are probably caused by hot magma trying to push up through the crust. 5. Why are impact craters less commonly found on Venus as compared to Mercury or the Moon? Lava constantly resurfaces the terrain, erasing signs of impacts. Also the thick atmosphere offers some protection. 6. On Venus, what conditions combine to produce “pancake domes”? Upwellings of lava depressed by the weight of the atmosphere produce “pancake domes.” 7. Four billion years ago, Venus may have been able to sustain life. What may have turned it into the planet we know today? Venus lies at the inner edge of the habitable zone, dangerously near the Sun. As the Sun matured and its luminosity increased, Venus heated up; a destructive greenhouse transformation occurred. 40 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 20 INNER SOLAR SYSTEM: VENUS TEST Circle the letter of the correct answer for each question. 1. Venus is a planet very similar in size to: a) Mercury. b) Mars. c) Earth. d) Earth’s moon. 2. The orbit of Venus around the Sun takes: a) 88 Earth days. b) 225 Earth days. c) 365 Earth days. 4) 157 Earth days. 3. Venus was named after: a) the Greek messenger of the gods. b) the Greek goddess of mystery. c) the Greek goddess of swamps. d) the Greek goddess of love and beauty. 4. The atmosphere of Venus: a) is over 90 times denser than that of Earth. b) blankets the planet, trapping in heat. c) makes Venus the hottest planet. d) all of the above. 5. The rotation of Venus: a) is in the opposite direction to that of Earth. b) matches the speed of Earth’s rotation. c) takes about 24 hours. d) all of the above. 41 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 21 INNER SOLAR SYSTEM: EARTH CHECKING COMPREHENSION PART A: Short Answer Questions Please use full sentences to answer each of the following questions. 1. What portion of the Earth’s surface is land? One third of the Earth’s surface is land. 2. Where did life most likely begin on Earth? It most likely began in the oceans with the appearance of simple organisms. 3. Today, Earth is home to approximately how many human beings? There are about 6 billion humans. 4. Briefly, what effect has humankind had on Earth’s environment? We have changed the landscape and the environment like no other species, and continue to destroy resources which cannot be renewed. 5. What do Earth’s volcanic eruptions tell us about our planet’s core? They are symptoms of Earth’s hot interior. 6. Earth’s crust is like a cracked eggshell. What do the cracks indicate? They are the boundaries of the Earth’s great plates. 7. What happens when Earth’s plates interact? Earthquakes, volcanoes, continental drift, and the growth of great mountain ranges are the results of this interaction. PART B: Fill In The Blank From the Word Bank below, fill in the missing information in the following statements. NOTE: Not all words will be used. 24 hours largest nickel crust iron moon coldest magnetic field million billion liquid outer core third 365 days lead solid inner core first mantle 1. Earth is the largest inner planet, third from the Sun, and first with a moon. 2. Earth’s rotation takes 24 hours, and its solar orbit takes 365 days. 3. Earth’s distance from the Sun is 150 million kilometers. 4. The top layer of the Earth is called the crust, below which is the mantle - a mix of partially melted and solid rock. 5. Next comes the layer called the liquid outer core. 6. The solid inner core is a slowly rotating heart of iron. and nickel. 7. The rotation of the solid inner core is thought to be the dynamo generating the Earth’s magnetic field. 42 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 22 INNER SOLAR SYSTEM: EARTH CAUSE AND EFFECT Certain planetary conditions and events have specific origins. Read each of the following outcomes. In the space provided, briefly explain what would be the origin or cause of each. Example: Observable outcome: volcanic eruption Underlying cause: release of heat from Earth’s core through release of lava 1. Observable outcome: earthquakes Underlying cause: interaction between Earth’s great plates 2. Observable outcome: the changing map of the Earth Underlying cause: continental drift resulting from movement of the great plates 3. Observable outcome: mountain ranges such as the Alps Underlying cause: crashing together of Earth’s plates 4. Observable outcome: apparent movement of the Sun across the sky Underlying cause: Earth turning on its axis 5. Observable outcome: varying lengths of day and night throughout the year Underlying cause: Earth’s 23 degree tilt on its axis 6. Observable outcome: winter in the northern hemisphere Underlying cause: the tilt of the northern hemisphere away from the Sun 7. Observable outcome: global weather patterns Underlying cause: the heat of the Sun that warms the oceans and begins the weather cycle 8. Observable outcome: wind Underlying cause: high pressure regions moving towards low pressure regions 9. Observable outcome: equatorial rainforests Underlying cause: thunderstorms and torrential rains which nurture these forests 10. Observable outcome: a new ice age Underlying cause: a change in Earth’s tilt 43 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 23 INNER SOLAR SYSTEM: EARTH TEST Circle the letter of the correct answer for each question. 1. The dominant feature on Earth’s surface is: a) its six continents. b) its cities and man-made structures. c) its great mountain ranges. d) its vast bodies of water. 2. The distance from Earth to the Sun is: a) 150 million kilometers. b) 108 million kilometers. c) 150 billion kilometers. d) 58 billion kilometers. 3. The Earth’s crust is thickest: a) beneath the continents. b) under the oceans. c) at the two poles. d) where continental plates meet. 4. The inner core of Earth is: a) a mix of partially melted and solid rock. b) molten lava. c) iron and nickel. d) all of the above. 5. Mountain ranges, like the Alps, are the result of: a) continental plates pulling apart. b) continental plates pulling and pushing. c) earthquakes and volcanoes. d) continental plates crashing together. 44 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 24 INNER SOLAR SYSTEM: THE MOON CHECKING COMPREHENSION PART A: Read each statement below. Underline the word or phrase in parentheses that correctly completes each statement. Cross out the incorrect word(s) or phrase(s). NOTE: There may be more than two choices. Cross out all incorrect choices. Example: At the time of the Moon’s formation, its orbit was (10) (20) (30) times closer to Earth than it is today. 1. In one orbit of Earth, the Moon turns (once) (twice) on its axis. 2. The diameter of the Moon is (one third) (one quarter) (one fifth) that of Earth. 3. The Moon takes (30 days) (27 1⁄3 days) (29 1⁄2 days) to orbit Earth. 4. When the face of the Moon is completely dark, we call this lunar phase (the New Moon) (the Full Moon). 5. Lunar gravity is (1⁄3) (1⁄8) (1⁄6) that of Earth. 6. The gravitational pull exerted by the Moon on our oceans is called (high tide) (tidal drag) (tidal gravity). PART B: Short Answer Questions Use a separate sheet of paper to answer each of the following questions. Please use full sentences. 1. How were the mare or “seas” on the Moon formed? Mare are basins gouged by impacts when the Moon was still molten. After an impact, lava would well from beneath and cool into a “sea” of dark rock. 2. How do mare differ from craters created by recent impacts? The Moon’s interior has cooled. Craters now are caused only by an impact on the surface. 3. 4. On the Moon, why do a hammer and a feather fall at the same speed? This occurs because there is no air-resistance on the Moon. How have scientists determined that the Moon’s interior is probably a solid, metallic core? A the end of each Apollo mission, landers were crashed back into the lunar surface. The Moon rang like a bell. 5. How do scientists measure the change in distance between the Moon and Earth? Apollo astronauts left reflectors on the Moon. Laser pulses bounced off these reflectors measure the growing distance within a centimeter. 6. What are the two main effects that the Moon’s gravitational pull has on the Earth? This pull influences the rise and fall of the ocean tides, and it keeps the Earth from wobbling on its axis. 45 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 25 INNER SOLAR SYSTEM: THE MOON TRUE OR FALSE Read the following statements. Place a T next to statements that are true, and an F next to statements that are false. 1. T ________ Scientists believe that Earth’s impact with another celestial body may have provided the material which formed its moon. 2. F ________ This impact is thought to have been a single collision. 3. T ________ The Earth would have been approximately 50 million years old at the time. 4. F ________ The surface condition of the Earth would have been much like it is today. 5. F ________ At the time the Moon first formed, it was about 10 times closer to Earth than it is today. 6. T ________ The Moon always presents the same face to Earth. 7. T ________ The Moon has no light of its own. 8. F ________ New craters on the Moon’s surface are formed by volcanic activity. 9. F ________ The Moon has no gravity of its own. T 10. ________ Scientists believe that the Moon’s interior is probably solid, with a metallic core. F 11. ________ The Moon’s core is relatively large when compared to Earth’s core. T 12. ________ Twice a day, around the globe, tides rise and fall as the Moon tugs on the oceans. T 13. ________ The gravitational pull exerted by the Moon helps to keep Earth’s axial rotation steady. F 14. ________ The Moon is growing closer to Earth by about 3 centimeters a year. 46 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 26 INNER SOLAR SYSTEM: THE MOON TEST Circle the letter of the correct answer for each question. 1. The distance from the Earth to the Moon is approximately: a) 384 million kilometers. b) 3500 kilometers. c) 384,000 kilometers. d) 150 million kilometers. 2. The Moon has no: a) core. b) gravity. c) light of its own. d) all of the above. 3. The mare of the moon are: a) basins gouged by impacts. b) oceans. c) volcanoes. d) lava channels. 4. On the Moon, a hammer and feather fall at the same speed because: a) there is gravity on the Moon. b) there is no air resistance. c) lunar gravity creates air resistance. d) the two items weigh the same on the Moon. 5. The gravitational pull exerted by the Moon on Earth’s oceans is called: a) tidal gravity. b) tidal rise and fall. c) tidal drag. d) tidal influence. 47 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 27 INNER SOLAR SYSTEM: ECLIPSES AND AURORAS CHECKING COMPREHENSION PART A: Fill In The Blank From the Word Bank below, fill in the missing information in the following statements. NOTE: Not all words will be used. 20 Earth corona 70 Sun Moon dark side annular umbra penumbra Lunar 400 sunny side 1. A solar eclipse occurs when the Moon aligns directly between the Earth and the Sun. 2. A total eclipse can occur because the Moon is 400 times smaller than the Sun, and 400 times closer to Earth than the Sun. 3. To witness a solar eclipse, you must be on the sunny side of the Earth. 4. A total eclipse occurs about 70 times a century. 5. When the Earth directly aligns between the Moon and the Sun, it is called a/an lunar eclipse. 6. When the full shadow of the Moon touches Earth, the center of that shadow is called the umbra. 7. At the peak of a solar eclipse, the Sun’s corona, which is normally invisible to the naked eye, can be seen. PART B: Short Answer Questions Use a separate sheet of paper to answer each of the following questions. Please use full sentences. 1. Where do auroras mainly occur? They mainly occur in the high latitudes of both hemispheres. 2. From what source do auroras originate? They originate with the Sun’s solar wind. 3. What are the main components of solar wind? The solar wind is a continuous flow of tenuous gas and electrically charged particles. 4. What role does Earth’s magnetic field play in creating an aurora? The magnetic field obstructs the solar wind particles, so the particles must flow around it. 5. What is the term for this magnetic field? It is called the magnetosphere. 6. What role do force lines play in creating an aurora? Some solar wind particles connect with and spiral down these force lines in the magnetic field towards the polar regions. The result is an auroral display. 7. What produces the light of an aurora? Light is produced by the countless collisions between solar particles and particles in our atmosphere. 8. What effect do solar flares have on the Earth? We get geomagnetic storms and wonderful auroras. 48 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 28 INNER SOLAR SYSTEM: ECLIPSES AND AURORAS TEST Circle the letter of the correct answer for each question. 1. When the Moon aligns directly between the Earth and the Sun: a) there is a lunar eclipse. b) this creates an annular eclipse. c) a total solar eclipse occurs. d) the aurora borealis is more clearly visible. 2. The imaginary plane containing the Earth’s orbit around the Sun is called: a) the eclipse. b) the ecliptic. c) the orbit. d) the orbital tilt. 3. When the Moon is close enough for a full shadow to touch Earth, the center of that shadow is called: a) the umbra. b) the penumbra. c) the corona. d) eclipse totality. 4. The Sun’s continuous flow of tenuous gas and electrically charged particles is called: a) the aurora. b) the magnetic field. c) a coronal mass ejection. d) the solar wind. 5. The magnetic field around Earth is called: a) the aurora borealis. b) the upper atmosphere. c) the magnetosphere. d) a force line. 49 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 29 INNER SOLAR SYSTEM: MARS CHECKING COMPREHENSION Please use full sentences to answer each of the following questions. 1. Which terrestrial planet is Mars’ closest neighbor? Mars’ closest neighboring planet is Earth. 2. Which terrestrial planet is Mars’ furthest neighbor? The furthest terrestrial neighbor is Mercury. 3. What is the star closest to Mars? The Sun is the closest star. 4. How does the size and mass of Mars compare to that of Earth? Mars is a little over half the size of Earth and one-ninth its mass. 5. How does a Martian day compare to an Earth day? A Martian day is just slightly longer than an Earth day - 241/2 hours. 6. How does a Martian year compare to an Earth year? A Martian year is almost twice as long as a year on Earth - 687 days. 7. What is the distance from Mars to the Sun? The distance is 228 million kilometers. 8. What is the range of temperatures on Mars? Temperatures range from minus 100 ˚C to just above freezing. 9. What feature on Mars is the largest geological fault in the solar system? The great rift of the Mariner Valley is the largest geological fault. 10. Why is the Mars sky pink in appearance? The sky is pink with Martian dust which is red due to its iron oxide content. 11. What evidence do we see today that Mars may once have flowed with water? Ancient flash flood channels are found everywhere on the planet surface. 12. What could have happened to much of that water once volcanic activity on the planet subsided? Because the atmosphere was no longer replenished by eruptions, the water probably leaked into space due to weak gravity. 13. What is the objective of current scientific study of Mars? The current objective is to hunt for traces of primitive life, past or present. 14. Why are scientists particularly interested in studying Mars? Mars is the world where astronauts are likely to travel next in space exploration. 50 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883 ANSWER KEY for page 30 INNER SOLAR SYSTEM: MARS TEST Circle the letter of the correct answer for each question. 1. Mars’ nearest terrestrial neighbor is: a) Jupiter. b) Earth. c) Venus. d) the Sun. 2. A Martian year is: a) twice as long as a year on Earth. b) half as long as a year on Earth. c) about the same as a year on Earth. d) about the same as a year on Earth’s moon. 3. Many of the surface features of Mars show evidence of: a) life. b) floods. c) sub-surface ice. d) geothermal springs. 4. The color of Mars is red due to: a) iron oxide in the soil. b) red dust in the atmosphere. c) the extreme heat on the surface. d) reflected sunlight. 5. The presence of hydrogen among Mars’ sub-surface elements is a sign that: a) there is life on Mars today. b) there was life on Mars in the past. c) there is ice beneath Mars’ surface. d) life cannot exist on Mars. 51 © Copyright 2003 • AIMS Multimedia • The Space Files: The Inner Solar System • #2877-2883