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GALAXIES BIG IDEA 5: EARTH IN SPACE AND TIME BENCHMARKS AND TASK ANALYSES SC.5.E.5.1 Recognize that a galaxy consists of gas, dust, and many stars, including any objects orbiting the stars. Identify our home galaxy as the Milky Way. SC.5.N.1.2 Explain the difference between an experiment and other types of scientific investigation. KEY QUESTIONS What makes up a galaxy? How do solar systems compare to galaxies? BACKGROUND INFORMATION Our solar system is one of millions of solar systems in our galaxy, the Milky Way. Objects in our solar system are held in place by gravity with the only star, the Sun, in the center. Other stars make up many other solar systems which combine to form galaxies. Our galaxy orbits the center of mass. There are three main types of galaxies as identified by the following table. Elliptical Spiral Irregular Made up of gas, dust, and stars Made up of gas, dust, and stars Made up of gas, dust, and stars Made up of both young and old stars Made up of mostly old stars Made up of young and old stars Held together by gravity Held together by gravity Held together by gravity Round or oval shape Pinwheel shape Has no identifiable shape Example- M87 (60 million light years from the Milky Way) Example- Milky Way Example- M82 (10 million light years from the Milky Way) The universe may contain 100 billion galaxies. More details can be found at http://www.seds.org/messier/more/mw.html MATERIALS Per student science notebook pencil colored pencils Per group 1 “Model of the Milky Way Galaxy” sheet to be used as a guide 37 small cups large piece of blue paper (18 X 24) fine sand SAFETY Students should wear goggles to avoid getting sand in their eyes. Grade 5, Big Idea 5 1 Orange County Public Schools June 2009 TEACHING TIPS 1. Students may have the misconception that constellations are a part of our solar system. You may need to discuss the fact that these are actually part of our galaxy. The Sun is the only star in our solar system. 2. Keep students on task to avoid messiness. 3. Students may have many questions about galaxies, solar systems, and the universe. This is an area of science where new information is constantly discovered. Encourage students to find answers to their questions by doing research on the Internet or by using recently published books. ENGAGE: 1. Display the key question and have students write it in their science notebook. 2. Provide student pairs or groups with a few minutes to discuss their preliminary thoughts about the question and to make notes in their science notebook. 3. Ask student pairs or groups to report out their preliminary thinking. (use this to help you understand student misconceptions and background knowledge on the subject) 4. Post the organizational map below. 5. Ask students: a. What is a universe? b. What is a galaxy? c. Which is larger- a universe or a galaxy? d. What is a solar system? e. Which is larger- a solar system or a galaxy? Many Solar Systems that orbit stars Universe Andromeda Galaxy Our Solar System that orbit the Sun Milky Way galaxy Many other Solar Systems that orbit stars M82 galaxy Many Solar Systems that orbit stars Other galaxies Many Solar Systems that orbit stars Grade 5, Big Idea 5 2 Orange County Public Schools June 2009 EXPLORE 1. Tell students that you are now going to make a model of one galaxy- the Milky Way galaxy. 2. Ask students why we would make a model of a galaxy. (They should be able to explain that we cannot see the entire galaxy so we have to make models) 3. Have student groups place on cup in the center of the large blue paper. Explain that this represents the center of the galaxy- a place where it is dense with old stars. 4. Have students create 5 curved “arms” that extend off the center so the model looks similar to the “Model of the Milky Way Galaxy” sheet. Explain that each cup represents millions of stars. 5. Refer students to the blue paper. Tell them that the blue paper represents all the gas in this galaxy. 6. Have students sprinkle the sand between the cups on the blue paper. Explain that this represents the space dust that is in the galaxy. 7. Tell students to rotate the blue paper in a circular manner. The center cup should always be in the same place and the blue paper should not leave the table. Tell students that the galaxy revolves around this cluster of old stars. 8. Give students a few minutes in their group to keep spinning the model, to discuss with one another what the model represents and to discuss what makes up a galaxy. This is the ideal time to walk around the room and do a quick assessment to determine if the students are making correct connections. 9. Tell students to look at one of the cups on the edge of one of the arms. Tell them that this represents our solar system, which has only one star- the Sun. Students can imagine how the model would look if all of the cups were also spinning like the large paper. 10. Ask students to recreate this model in their science notebook using blue colored pencil as gas, brown colored pencil as dust, and yellow colored pencil as the millions of stars. Students must be sure to use a key to identify the parts of the galaxy. EXPLAIN 1. Ask students: a. What is a universe? b. What is a galaxy? c. Which is larger- a universe or a galaxy? d. What is a solar system? e. Which is larger- a solar system or a galaxy? f. What is the name of our galaxy? g. What is a galaxy made of? 2. Ask students if this was a scientific experiment or investigation. (investigation) Ask students to explain the difference. (no variable to control) EXTEND AND APPLY Allow students to create a model of the Milky Way using other materials. Require students to explain what each material represents in the model. ASSESSMENT 1. Make observational assessments when walking around the room while students are manipulating the model. Make notes of misconceptions or inappropriate use of vocabulary. 2. A more formal assessment can be made from the student’s drawing in their notebook. Determine if they understand what a galaxy is by ensuring that their drawing identifies stars, gas, and dust. The student’s graphic should have a clear key. 3. For a very formal assessment, the questions in the “Explain” section could be used as a written assessment. Grade 5, Big Idea 5 3 Orange County Public Schools June 2009 Model of the Milky Way galaxy Grade 5, Big Idea 5 2009 4 Orange County Public Schools, Orlando, Florida CLASSIFY AND DESCRIBE PLANETS BIG IDEA 5: EARTH IN SPACE AND TIME BENCHMARKS AND TASK ANALYSIS SC.5.E.5.2 Recognize the major common characteristics of all planets and compare/contrast the properties of inner and outer planets. SC.5.N.1.2 Explain the difference between an experiment and other types of scientific investigation. KEY QUESTION How can you classify and describe the planets in our solar system? BACKGROUND INFORMATION Our solar system consists of the sun and all the objects- eight planets and their moons, asteroids, meteoroids, thousands of comets, and particles of dust and gas- that revolve around the sun. Each of the eight planets spins around an axis and travels in a counterclockwise direction around the sun. The time it takes a planet to orbit around the sun is that planet’s year. A planet’s distance from the sun affects its climate and atmosphere. More information can be found at http://www.nasa.gov/worldbook/index.html MATERIALS Per student student notebook and pencil Per group crayons or markers Solar System Cards Teacher Print and laminate enough sets of the planet cards ahead of time SAFETY Always follow OCPS science safety guidelines. TEACHING TIPS ENGAGE 1. Display the key question and have students write it in their science notebook. 2. Provide student pairs or groups with a few minutes to discuss their preliminary thoughts about the question and to make notes in their science notebook. 3. Ask student pairs or groups to report out their preliminary thinking. (use this to help you understand student misconceptions and background knowledge on the subject) 4. Pass out the planet cards. Each student should get one. A group would include all 8 planets. 5. Ask one group of 8 students to come up to the front of the room. Ask them to stand so that the distances of their planets from the sun are arranged from smallest to largest. List these in order on the board. 6. Ask that same group to rearrange themselves so that their planet’s densities are arranged from greatest to least. List these in order on the board below the list you just created. EXPLORE: 1. Allow student groups time to compare their cards and line themselves up based upon the attributes on the cards. Grade 5, Big Idea 5 2009 5 Orange County Public Schools, Orlando, Florida 2. Have students write their observations in their science notebooks and to discuss ways to classify the planets based upon patterns. 3. Provide each student with a planet comparison chart (or have them create their own). Ask them to complete the chart using the planet cards. 4. Allow each group time to report out conclusions about how planets can be classified and what observations were made. (Students should notice that the lists are similar. Inner planets generally have higher densities than the gas giants. The inner planets usually have smaller diameters. Gas giants usually have longer lengths of years.) EXPLAIN 1. Tell students that planets are generally classified as either inner or outer planets based upon similar attributes. 2. Using the “Planet Comparison Chart”, students should answer the following questions: a. Which planets have moons? b. Which planets have a density greater than 2? Are these inner or outer planets? What do you think this tells us about these planets? c. Which planets have a diameter less than Earth’s? Are these inner or outer planets? What do you think this tells us about these planets? 3. Ask students if this was a scientific experiment or investigation. (investigation) Ask students to explain the difference. (no variable to control) EXTEND AND APPLY 1. Have students create a bar graph comparing the diameter of the planets. 2. Have students write the planets’ distances from the sun using scientific notation. 3. Read Our Solar System by Rachel Kranz and/or A Tour of the Planets by Melvin Berger. 4. Divide students into groups to research the planets. Each group would be responsible for creating two pages for a class book about planets. This book can stay in the classroom or be shared with others. ASSESSMENT 1. Complete observational assessments as student groups are working together- note if students are using scientific thinking to discuss patterns and to classify information. 2. Notebook entries can be evaluated using the rubric. 3. The questions in the “Explain” section can be written assessment questions. 4. Have students respond to the following prompt: “A new planet has been found. It has a density of 4.2 and surface gravity that is less than Earth’s. Would this likely be an inner planet or an outer planet?” (Because of the pattern noted above, students should determine that the planet is an inner planet because of the density. Surface gravity cannot be a deciding factor since there are both inner and outer planets with gravities less than Earth.) Grade 5, Big Idea 5 2009 6 Orange County Public Schools, Orlando, Florida Density: 5.5 Density: 5.2 Diameter: 4,900 Km Diameter: 12,100 Km Distance from the Sun: 57,900,000 Km Distance from the Sun: 108,200,000 Km Surface Gravity (compared to Earth): 0.39 Surface Gravity (compared to Earth): 0.91 Length of Year:88 Earth days Length of Year:225 Earth days Composition: Rock and metal Composition: Rock and metal Number of Moons: 0 Number of Moons: 0 Temperature: -185 degrees to 450 degrees Temperature: 482 degrees Celsius at the surface E A R T H Density: 5.5 Density: 3.9 Diameter: 12,800 Km Diameter: 6,800 Km Distance from the Sun: 149,600,000 Km Distance from the Sun: 227,900,000 Km Surface Gravity: 1 Surface Gravity: 0.38 Length of Year: 365 days Length of Year: 687 Earth days Composition: Rock and metal Composition: Rock and metal Number of Moons: 1 Number of Moons: 2 Temperature: 15 degrees Celsius on surface (average) Temperature: -23 degrees Celsius on the surface (average) Grade 5, Big Idea 5 2009 7 Orange County Public Schools, Orlando, Florida Density: 1.3 Density: 0.7 Diameter: 143,000 Km Diameter: 120,600 Km Distance from the Sun: 778,300,000 Km Distance from the Sun:1427,000,000 Km Surface Gravity: 2.60 Surface Gravity: 1.07 Length of Year:11.9 Earth years Length of Year:29.5 Earth years Composition: Mostly Hydrogen and Helium gases Composition: Mostly Hydrogen and Helium gases Number of Moons: 63 Number of Moons: 34 Temperature: -150 degrees at cloud tops Temperature: -180 degrees at cloud tops Density: 1.3 Density: 1.6 Diameter: 51,100 Km Diameter: 49,500 Km Distance from the Sun: 2870,000,000 Km Distance from the Sun: 4497,000,000 Km Surface Gravity: 0.90 Surface Gravity: 1.15 Length of Year:84 Earth years Length of Year:165 Earth years Composition: Mostly Hydrogen and Helium gases Composition: Mostly Hydrogen and Helium gases Number of Moons: 27 Number of Moons: 13 Temperature: -210 degrees at cloud tops Temperature: -220 degrees at cloud tops Grade 5, Big Idea 5 2009 8 Orange County Public Schools, Orlando, Florida EARTH’S POSITION IN THE SOLAR SYSTEM BIG IDEA 5: EARTH IN SPACE AND TIME BENCHMARKS AND TASK ANALYSES SC.5.E.5.3 Distinguish among the following objects of the Solar System—Sun, planets, moons, asteroids, comets—and identify Earth’s position in it. The student: The student uses a model to locate the position of the Earth in relation to the Sun, all of the planets, Earth’s moon, and asteroid belt. SC.5.N.1.2 Explain the difference between an experiment and other types of scientific investigation. KEY QUESTION What is the Earth’s position in our solar system? BACKGROUND INFORMATION The solar system consists of the sun, the planets and their moons, asteroids, meteoroids, thousands of comets, and particles of dust and gas that revolve around the sun. Each of the nine planets spins around an imaginary axis through its center, while also traveling in a clockwise direction around the sun. The word planet comes from the Greek “planets,” which means “wanderer.” The distances from planet to planet and across the solar system are so large that it is hard to even imagine them. The exact distances between the planets and the sun and between the planets themselves vary because the planets move in oval orbits. The chart below shows the approximate distance from the sun to each of the planets. Planet Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto Approximate distance from the sun 60,000,000 km 110,000,000 km 150,000,000 km 230,000,000 km 780,000,000 km 1,430,000,000 km 2,880,000,000 km 4,590,000,000 km 5,900,000,000 km More information can be found at http://www.nasa.gov/worldbook/index.html MATERIALS Teacher/Class Per group 11 meter sticks or stakes Set of solar system cards Laminated black and white planet cards Trundle wheel or measuring tape Multiple sets of color solar system cards should be printed and laminated if possible One set of the black and white scale model cards should be printed and laminated and taped to meter sticks Grade 5, Big Idea 5 2009 9 Orange County Public Schools, Orlando, Florida Per student science notebook and pencil SAFETY Always follow OCPS science safety guidelines. TEACHING TIPS You will need to take students outside for part of the demonstration. Prepare and laminate the planet cards. Tape them to the meter sticks or stakes. Students can use a trundle wheel to measure the distances or estimate the distances and pace them off. Since many trundle wheels utilize the metric system, distances are given in feet and in meters (rounded to the nearest whole centimeter). Depending on your school’s type of ground, you may need a hammer to get the sticks or stakes into the ground. ENGAGE 1. Display the key question and have students write it in their science notebook. 2. Provide student pairs or groups with a few minutes to discuss their preliminary thoughts about the question and to make notes in their science notebook. 3. Ask student pairs or groups to report out their preliminary thinking. (use this to help you understand student misconceptions and background knowledge on the subject) 4. Divide students into groups and provide each group with a set of solar system cards. 5. Ask each group to look at the cards and determine where the Earth’s position is in the solar system. 6. Regroup and hear ideas. (Students should be able to determine that the “distance from the Sun” is the characteristic that will allow them to order the planets. EXPLORE 1. Take the class outside to a field or playground at least 600 feet in length. Tell students that the class will mark off the distances between the planets in the solar system and create a visual model. Remind students that the model will not be an accurate representation, but it will help them to better appreciate and understand the great distances between planets in the solar system and their position relative to the sun. 2. Put the sun stake into the ground, facing the direction in which you plan to walk. 3. Measure 6 feet (1.83 meters) from the sun and place the Mercury stake into the ground. Ask: Can you still see the circle representing the sun? 4. Measure 5 more feet or 1.53 meters (11 ft. or 3.36 meters from the sun stake). Place the Venus stake into the ground. Ask: Can you see the sun circle from here? (Note: Students should focus on trying to see the circle on the card - not the stake itself.) 5. Measure 4 feet or 1.22 meters (15 feet or 4.58 meters from the sun). Place the earth stake into the ground. Ask: Can you see the sun circle? Can you see the circle representing Mercury? Can you see the circle representing Venus? 6. Measure 9 more feet or 2.75 meters (24 feet or 7.32 meters from the sun). Place the Mars stake into the ground. Continue to question the students about the visibility of the previously staked planet circles and the sun. 7. Tell the students, We are now beginning to mark off the latter half of the solar system - the outer planets. 8. Measure 19 more feet or 5.52 meters (43 feet or 13.12 meters from the sun). This is the Asteroid Belt. Grade 5, Big Idea 5 2009 10 Orange County Public Schools, Orlando, Florida 9. Measure 37 feet or 11.29 meters from the Asteroids Belt (80 feet or 24.4 meters from the sun). Place the Jupiter stake into the ground. Continue the questioning. 10. Measure 60 feet or 18.3 meters from Jupiter (148 feet or 45.14 meters from the sun). Place the Saturn stake into the ground. 11. Measure 146 feet or 44.53 meters from Saturn (294 feet or 89.67 meters from the sun). Place the Uranus stake into the ground. 12. Measure 130 feet or 39.65 meters from Uranus (446 feet or 136.03 meters from the sun). Place the Neptune stake into the ground. Ask: What is the farthest planet you can see? 13. Measure 165 feet or 50.33 meters from Neptune (611 feet or 186.36 meters from the sun). Place the Pluto stake into the ground. Ask: Can you still see the sun? Which planets can you still see from this point? EXPLAIN 1. Have students sit together at the Pluto stake and discuss the experience. a. What do you see now? (mostly empty space) b. Are the distances the same between the planets? (no) c. Why can we not see all the planets from the earth? (The distances are too great.) d. Which planet is closest to the sun? (Mercury) e. Which planet is farthest from the sun? (Pluto) f. Which planet takes the longest time to revolve around the sun? Why? (Pluto, which is the farthest from the sun) g. Which planets probably have the warmest climate? (those planets which are closest to the sun) h. Which planets probably have the coldest climate? (those planets which are the farthest from the sun) 2. As you walk back to collect the materials, make sure students note the position of the Earth in the model. 3. Ask students if this was a scientific experiment or investigation. (investigation) Ask students to explain the difference. (no variable to control) EXTEND AND APPLY 1. Students have focused only on relative distances between the planets. The stake cards were marked with symbolic circles showing the relative sizes of the planets, but students may wish to further explore the relationship of planet size. Students can select balls to represent the planets, approximating their size: Planet Diameter Ball Sun 1,392,000 km ball 2-3 m diameter Mercury 4,880 km small marble Venus 12,100 km tennis ball Earth 12,756 km tennis ball Mars 6,787 km ping-pong ball Jupiter 142,800 km basketball Saturn 120,000 km soccer ball Uranus 51,800 km baseball Neptune 49,500 km baseball Pluto 3,000 km small marble Students can then replicate the previous activity, using the balls instead of the planet stakes. Different students can stand at each planet site and hold the planet (ball), or students can make stick markers and leave the balls at each site. Grade 5, Big Idea 5 2009 11 Orange County Public Schools, Orlando, Florida ASSESSMENT 1. Students can respond to the question: What is the Earth’s position in our solar system? in their notebooks. 2. Students use the diameters listed on the color solar system cards to create a scale drawing of the solar system. Grade 5, Big Idea 5 2009 12 Orange County Public Schools, Orlando, Florida Density: 5.5 Density: 5.2 Diameter: 4,900 Km Diameter: 12,100 Km Distance from the Sun: 57,900,000 Km Distance from the Sun: 108,200,000 Km Surface Gravity (compared to Earth): 0.39 Surface Gravity (compared to Earth): 0.91 Length of Year:88 Earth days Length of Year:225 Earth days Composition: Rock and metal Composition: Rock and metal Number of Moons: 0 Number of Moons: 0 Temperature: -185 degrees to 450 degrees Temperature: 482 degrees Celsius at the surface E A R T H Density: 5.5 Density: 3.9 Diameter: 12,800 Km Diameter: 6,800 Km Distance from the Sun: 149,600,000 Km Distance from the Sun: 227,900,000 Km Surface Gravity: 1 Surface Gravity: 0.38 Length of Year: 365 days Length of Year: 687 Earth days Composition: Rock and metal Composition: Rock and metal Number of Moons: 1 Number of Moons: 2 Temperature: 15 degrees Celsius on surface (average) Temperature: -23 degrees Celsius on the surface (average) Grade 5, Big Idea 5 2009 13 Orange County Public Schools, Orlando, Florida Density: 1.3 Density: 0.7 Diameter: 143,000 Km Diameter: 120,600 Km Distance from the Sun: 778,300,000 Km Distance from the Sun:1427,000,000 Km Surface Gravity: 2.60 Surface Gravity: 1.07 Length of Year:11.9 Earth years Length of Year:29.5 Earth years Composition: Mostly Hydrogen and Helium gases Composition: Mostly Hydrogen and Helium gases Number of Moons: 63 Number of Moons: 34 Temperature: -150 degrees at cloud tops Temperature: -180 degrees at cloud tops Density: 1.3 Density: 1.6 Diameter: 51,100 Km Diameter: 49,500 Km Distance from the Sun: 2870,000,000 Km Distance from the Sun: 4497,000,000 Km Surface Gravity: 0.90 Surface Gravity: 1.15 Length of Year:84 Earth years Length of Year:165 Earth years Composition: Mostly Hydrogen and Helium gases Composition: Mostly Hydrogen and Helium gases Number of Moons: 27 Number of Moons: 13 Grade 5, Big Idea 5 2009 14 Orange County Public Schools, Orlando, Florida Temperature: -210 degrees at cloud tops Temperature: -220 degrees at cloud tops S U N A S T E R O I D Density: 1.4 g/cm3 B E L T Includes more than 750,000 asteroids Diameter: 1,391,000 Km Distance from the Sun: 0 Distance from the Sun: Approx. 420,000,000 Km Surface Gravity (compared to Earth): 28 Composition: Carbon and other minerals Composition: Hot Gas Number of Moons: 0 Avg Temperature: -100o Celsius at the surface Temperature: 5,500 degrees C Grade 5, Big Idea 5 2009 15 Orange County Public Schools, Orlando, Florida Grade 5, Big Idea 5 2009 16 Orange County Public Schools, Orlando, Florida Grade 5, Big Idea 5 2009 17 Orange County Public Schools, Orlando, Florida Grade 5, Big Idea 5 2009 18 Orange County Public Schools, Orlando, Florida Permission to duplicate is granted by Mike Ryan, Astronomy Education Specialist, Eustis, FL. Grade 5, Big Idea 5 2009 19 Orange County Public Schools, Orlando, Florida CLASSIFY AND IDENTIFY SOLAR SYSTEM OBJECTS BIG IDEA 5: EARTH IN SPACE AND TIME BENCHMARKS AND TASK ANALYSES SC.5.E.5.3 Distinguish among the following objects of the Solar System—Sun, planets, moons, asteroids, comets—and identify Earth’s position in it. The student: identifies objects of the Solar System including Sun, planets, moons, asteroids, and comets. compares/contrasts characteristics of the Sun, planets, moons, asteroids, and comets in our Solar System. SC.5.N.1.2 Explain the difference between an experiment and other types of scientific investigation. SC.5.N.2.1 Recognize and explain that science is grounded in empirical observations that are testable; explanations must always be linked with evidence. KEY QUESTION How can we classify and identify solar system objects? BACKGROUND INFORMATION The solar system consists of the sun, the planets and their moons, asteroids, meteoroids, thousands of comets, and particles of dust and gas that revolve around the sun. Each of the eight planets spins around an imaginary axis through its center, while also traveling in a clockwise direction around the sun. Mercury and Venus have no moons Earth has one moon named Luna Mercury has 2 moons: Jupiter has 63 moons including Callisto, Europa, Ganymede, Io Saturn has 34 moons including Enceladus Uranus has 27 moons Neptune has 13 moons More information can be found at http://www.nasa.gov/worldbook/index.html MATERIALS Per student Science notebook and pencil Per group “Asteroid, Comet, Moon, or Planet?” chart SAFETY Always follow OCPS science safety guidelines. TEACHING TIPS 1. Allow students time to research our solar system on the internet. 2. Check out books from the library about the solar system for students to gather information. 3. Encourage students to bring resources from home. ENGAGE 1. Tell students to write the key question in their notebook. 2. Have students take a moment to think about the question: How can we classify and identify solar system objects? and to write their thoughts in their science notebook under the key question. 3. Ask students to think-pair-share their ideas with a partner. Grade 5, Big Idea 5 2009 20 Orange County Public Schools, Orlando, Florida 4. Allow student partners to share their thoughts. 5. Tell students that today, we will look at some evidence and students will need to be scientists and use this evidence to form conclusions. EXPLORE 1. Provide each group of students with the data chart. Ask them to use what they know about solar system objects to make a claim in the last column. Their claim must be whether the object is an asteroid, a comet, a moon, or a planet. Students must be prepared to support their claim with evidence from the chart or other resource. 2. Allow students ample time to discuss and make claims. 3. Provide time for students to report out their conclusions and support their claims. EXPLAIN 1. Ask the following questions to support understanding: What characteristics do planets have in common? - Orbit the sun - Spherical shapes What characteristics do comets have in common? - Orbit the sun - Have a tail and made of dust - Have an irregular shape What characteristics do asteroids have in common? - Orbit the sun - Have an irregular shape What characteristics do moons have in common? - Orbit a planet - Have a spherical shape 2. Ask students if this was a scientific experiment or investigation. (investigation) Ask students to explain the difference. (no variable to control) ASSESSMENT 1. Evaluate science notebooks according to the rubric. 2. Students respond to the following prompt: Scientists need to classify two objects in our solar system. This is the information we have on them: Vesta: Vesta is located approximately 375,000,000 Km from the sun and has no atmosphere. Vesta orbits the sun and has an irregular shape. Pluto: Pluto is located 7,376,000,000 Km from the sun at its farthest point during its orbit around the sun. Pluto has very little atmosphere and is made of ice. What do you think each object is- an asteroid, comet, moon, or planet? Explain your thinking. (Note: Both Vesta and Pluto are solar system objects that scientists disagree on the classification of and both have been thought to be able to meet the criteria for either a planet or a dwarf planet at one point. Currently, Vesta is identified as an asteroid and is in the asteroid belt. Assess students only on their critical thinking and ability to provide evidence for their claim.) Grade 5, Big Idea 5 2009 21 Orange County Public Schools, Orlando, Florida Asteroid, Comet, Moon, or Planet? Orbits… Composition Atmosphere? Shape Earth Sun Rock Cloudy Spherical Enceladus Saturn Ice No Spherical Eros Sun Rock Almost none Irregular Europa Jupiter Ice No Spherical Ganymede Jupiter Ice No Spherical Halley Sun Almost none Irregular Hyperion Saturn Ice and dust, with a long tail Ice and rock No Irregular Ida Sun Rock Almost none Irregular Io Jupiter Rock No Spherical Jupiter Sun Gas Thick and cloudy Spherical Luna Earth Rock No Spherical Mars Sun Rock Thin and cloudy Spherical Mercury Sun Rock No Spherical Miranda Uranus Ice No Spherical Neptune Sun Gas Thick and cloudy Spherical Phobos Mars Rock No Spherical Saturn Sun Gas Thick and cloudy Spherical Tempel 1 Sun Almost none Irregular Titan Saturn Ice and dust, with a dust tail Rock and ice Thick and cloudy Spherical Triton Neptune Ice Almost none Spherical Uranus Sun Gas Thick and cloudy Spherical Venus Sun Rock Thick and cloudy Spherical Grade 5, Big Idea 5 2009 22 Orange County Public Schools, Orlando, Florida What is it? Planet Asteroid Moon Comet 5th Grade Science Notebook Rubric Preliminary Thinking Data Collection/ Observations only includes key question no data or diagrams 1 limited D 3 above average B 4 excellent A key question is written in the notebook no evidence or data used to support preliminary thinking (data can be personal experiences, previous investigations, or research information) preliminary thoughts may not be related to the key question key question is written in the notebook limited evidence or data used to support preliminary thinking (data can be personal experiences, previous investigations, or research information) preliminary thoughts are related to the key question key question is written in the notebook uses data as evidence to make predictions (data can be personal experiences, previous investigations, or research information) preliminary thoughts are related to the key question Grade 5, Big Idea 5 2009 2 average C Conclusion/ Reflection no observational data data charts, graphs, and tables are not accurate or not visually appealing (unreadable) diagrams are missing scientific labels no relevant handouts or other supplemental material included (where applicable) limited observational data data charts, graphs, and tables are not accurate or not visually appealing (unreadable) diagrams include some scientific labels relevant to the investigation some relevant handouts or other supplemental material are included (where applicable) observations are detailed and include labels where applicable data charts, graphs, and tables are mathematically accurate and visually appealing diagrams include many scientific labels that are relevant to the investigation all relevant handouts or other supplemental material are included (where applicable) 23 Orange County Public Schools, Orlando, Florida conclusion only responds to key question with no evidence does not attempt to explain class data discrepancies (where applicable) conclusions have limited explanations and may not be linked to evidence conclusions do not connect to the investigation and may relate to irrelevant topics attempts to explain class data discrepancies (where applicable) are incorrect no connections are made to real world situations or other investigations completed in class explains and defends conclusions using evidence conclusions connect to the investigation and refer to some element of the investigation attempts to explain class data discrepancies (where applicable) are incomplete connections are made to real world situations or other investigations completed in class explains and defends conclusions using evidence conclusions connect to the investigation and refer to some element of the investigation accurately explains class data discrepancies (where applicable) connections are made to real world situations or other investigations completed in class