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Investigating Weather Systems: Lesson 5 5th Grade INTENDED CURRICULUM BIG IDEA: (display in class during the lesson) Weather on Earth is affected by many variables; follows predictable patterns; and is measured and described as data by scientific instruments. Investigating Weather Systems kit Lesson 7 Establish working word wall throughout the lesson. NC Competency Goal 3: The learner will conduct investigations and use appropriate technology to build an understanding of weather and climate. 3.02 Discuss and determine how the following are affected by predictable patterns of weather: Temperature Wind direction and speed Precipitation Cloud cover Air pressure 3.04 Explain how global atmospheric movement patterns affect local weather. LESSON CONTENT GOALS GUIDING QUESTIONS 1) Air has mass and can be compressed. 1) What are some properties of air? 2) Air exerts pressure in all directions. The more it is compressed the more pressure it exerts. 2) How do we know air exerts pressure in all directions? 3) Earth is surrounded by a layer of air called atmosphere. With altitude the air gets thinner and temperature decreases. 3) What causes air pressure to change as we travel up above the earth’s surface? WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 83 IMPLEMENTED CURRICULUM Teacher’s Note: This lesson will take approximately 8 days to complete. The materials needed for each investigation will be listed with the investigation Advanced Preparation: Overview of Lesson: _____Read engaging scenario. _____Discuss problem to solve for this investigation, record and share. _____Make a chart to record characteristics of the layers of the atmosphere. _____Guide students to take notes while reading using a web organizer. _____Fill web organizer on the atmosphere with information on what they learned. _____Making Meaning Conference: guide students into making claims and evidence with the information they studied about air and pressure. _____Claims and Evidence: students answer the guiding questions with claims based on the evidence they collected or read. _____Conclusion: students revisit prediction and write a statement on whether the prediction was supported or not by the evidence. _____Reflection: students write a question they would like to investigate related to the concept covered or read in this lesson. WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 84 DAY ONE ENGAGING SCENARIO TEACHER’S NOTE: Read the engaging scenario. Use the template at the end of the lesson to either make copies or a transparency for students to follow along as it is read. “The NASA scientists are now faced with a new challenge. In order to test how to launch the new space vehicle that will transport the solar panels to the International Space Station, the team of scientists needs to understand more about air, especially the air that surrounds the earth. One of the team’s pilots was testing air balloons and reported that on one of his flights the inflated balloons that were hanging outside his plane became smaller as the plane flew higher, and when he landed they were back to the same size again. They are very surprised this happened and are looking for an explanation. They have sent us some tools and some reading materials to find an explanation to what happened. What is the problem we need to investigate?” Teacher’s note: Provide students with important clues from the engaging scenario by using the following questions: Teacher says: “What do the scientists have to do before launching the new space vehicle? They need to understand more about the air around earth. What did the pilot notice about the inflated balloons in this plane? They got smaller with altitude and back to its normal size as the plane came down. What do we have to investigate? Allow students time to discuss the problem. Walk around the groups to listen to their ideas and provide feedback when necessary. Select examples of focus questions that can be shared with the class. Sharing will give the groups having difficulty finding the problem a chance to reorganize their thoughts. Allow them to copy a shared focus question from others and have them report as a class focus question. FOCUS QUESTION (display, discuss by groups, record in notebooks) Suggested class focus question (DO NOT COPY ON BOARD) How does air in a balloon get in an out while going up an airplane and then going down? OR How does altitude affect the air inside a balloon? Check and provide feedback. WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 85 PREDICTION (discuss in groups, record in notebooks) Teacher’s note: After students finish writing the focus question, present them with the chart of the layers of the atmosphere for students to study. (Appendix 5-2) Teacher says: “Before you discuss with your group how to solve the problem we will start with what the scientists have provided us to review. The scientists want us to know that the air around earth is divided into layers so they gave us this chart to look at. These layers are part of the atmosphere and have different characteristics. They said to investigate things like their temperature, size, pressure and thickness (density).” “We will learn about these layers and list their characteristics as we go along for you to record them in your notebooks. Let us make a chart to record these characteristics.” “Look at the chart, how many layers do you see? 4 “What are their names? Troposphere, stratosphere, mesosphere, and exosphere “We have four rows on our chart, one for each layer. “What characteristics did the scientists mention? Temperature, pressure, thickness “We can write these in columns. Make your charts in your notebook then, we will begin to read “Layers of the Atmosphere” and add information to our chart.” LAYERS CHARACTERISTICS OF LAYERS OF THE ATMOSPHERE Distance from TEMPERATURE GASES AIR’S OTHER the ground up DENSITY Thermosphere Mesosphere Stratosphere Troposphere Use the chart provided to examine the characteristic of each layer of the atmosphere. Guide students to record notes on the earth’s atmosphere as they read. Implement a reading strategy suitable for your students to practice at this time. WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 86 Use the following questions to assist them in taking notes. Do not have them copy the questions, but instead use a graphic organizer with the word atmosphere and they can be adding the characteristics to it as they read along. WORD WALL Dense: thick “How far above us does the atmosphere reach?” More than 430 miles “Where in the atmosphere is the air the thickest or denser?” At the bottom “What happens to the air as we travel up the atmosphere towards outer space?” It gets thinner. “How many layers does the atmosphere have?” 4 SAMPLE WEB CHART ORGANIZER ON THE ATMOSPHERE Air is thicker at bottom 430 miles high ATMOSPHERE It has four layers “Where does most of our weather happen?” In the Troposphere “Which are the weather factors?” Humidity, temperature, pressure and wind “Which layer of the atmosphere contains what is called the ozone layer?” Stratosphere “In which layer do meteors burn up in our atmosphere and look to us like shooting stars?” Mesosphere “Which layer of the atmosphere is the closest to outer space?” Thermosphere After students finish making their charts have them share (5minutes) with a partner about what they learned today about the earth’s atmosphere by filling in more words on the chart. You will need the following supplies to conduct the investigations over the next four days you may wish to get them ready. DAY TWO Teacher says: “Now that we know something about the layers of the atmosphere, I have here some of the tools that the scientists would like us to use to investigate the problem. They would like for us to use some of the tools that they have provided to conduct four investigations that may WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 87 provide us with information to solve the problem faced by the NASA scientists and test some predictions.” Remind students that this will be their first prediction and they will make of several over the next few days. Have them record it in their notebooks as Prediction #1. Allow the class time to discuss a way to solve the problem faced by the NASA scientists. Circulate and listen to their ideas. Distribute BLM 7-1 Air Investigation #1 (master in Appendix 5-7) and ask the students what they think will happen when they lower the bottle into the water. Make sure they explain why they think their prediction will solve the problem by using the word “because” in their statement. Select examples of predictions from the group so they can share with the class. Provide assistance to groups that have difficulty writing the prediction by providing them with an example. Suggested Prediction: (DO NOT COPY THIS FOR STUDENTS) I think that if we put the bottle in the water no water will enter it because the bottle has air inside. DATA CHART (record in notebooks) As the groups finish sharing predictions with the class, they are to conduct the investigation and record their observations in their science notebooks. Direct the students to be sure to make a label drawing of what they observe. Also direct them to respond to the questions raised in item #9 of the investigation by recording their answers in their science notebook. Ask the students to think about their prediction and compare it to what they actually observed. Close by sharing with the students that they will be doing another investigation the next day. DAY THREE Teacher says: “Now we have another investigation to conduct using some of the tools that the scientists would like us to use to investigate the problem.” Remind students that this will be their second prediction and they will make of several over the next few days. Have them record it in their notebooks as Prediction #2. Allow the class time to discuss a way to solve the problem faced by the NASA scientists. Circulate and listen to their ideas. Distribute BLM 7-2 Air Investigation #2 (master in Appendix 5-8) and ask the students what they think will happen when they lower the bottle with a balloon on its top into the warm water. WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 88 Make sure they explain why they think their prediction will solve the problem by using the word “because” in their statement. Select examples of predictions from the group so they can share with the class. Provide assistance to groups that have difficulty writing the prediction by providing them with an example. Suggested Prediction: (DO NOT COPY THIS FOR STUDENTS) I think that the balloon will expand because the air inside the bottle will push it when it is heated. DATA CHART (record in notebooks) As the groups finish sharing predictions with the class, they are to conduct the investigation and record their observations in their science notebooks. Direct the students to make a label drawing of what they observe. Also direct them to respond to the questions raised in item #6 of the investigation by recording their answers in their science notebook. Ask the students to think about their prediction and compare it to what they actually observed. Close by sharing with the students that they will be doing another investigation the next day. DAY FOUR Teacher says: “Now we have a third investigation to conduct using some of the tools that the scientists would like us to use to investigate the problem.” Remind students that this will be their third prediction. Have them record it in their notebooks as Prediction #3. Allow the class time to discuss a way to solve the problem faced by the NASA scientists. Circulate and listen to their ideas. Distribute BLM 7-3 Air Investigation #3 (master in Appendix 5-9) and ask the students what they think will happen to the balance when they blow up one of the balloons. Make sure they explain why they think their prediction will solve the problem by using the word “because” in their statement. Select examples of predictions from the group so they can share with the class. Provide assistance to groups that have difficulty writing the prediction by providing them with an example. Suggested Prediction: (DO NOT COPY THIS FOR STUDENTS) I think that the balloon with air will be heavier because the air inside the balloon has weight. WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 89 DATA CHART (record in notebooks) As the groups finish sharing predictions to the class, they are to conduct the investigation and record their observations in their science notebooks. Direct the students to make a label drawing of what they observe. Also direct them to respond to the questions raised in item #9 of the investigation by recording their answers in their science notebook. Ask the students to think about their prediction and compare it to what they actually observed. Close by sharing with the students that they will be doing another investigation the next day. DAY FIVE Teacher says: “Now we have a final investigation to conduct using some of the tools that the scientists would like us to use to investigate the problem.” Remind students that this will be their fourth and final prediction. Have them record it in their notebooks as Prediction #4. Allow the class time to discuss a way to solve the problem faced by the NASA scientists. Circulate and listen to their ideas. Distribute BLM 7-4 Air Investigation #4 (master in Appendix 5-10) and ask the students what they think will happen when they grab the bottom of the plastic bag. Make sure they explain why they think their prediction will solve the problem by using the word “because” in their statement. Select examples of predictions from the group so they can share with the class. Provide assistance to groups that have difficulty writing the prediction by providing them with an example. Suggested Prediction: (DO NOT COPY THIS FOR STUDENTS) I think that when I grab the bottom of the plastic bag, I will be able to take it out of the can because the bag is plastic and not very strong. DATA CHART (record in notebooks) As the groups finish sharing predictions with the class, they are to conduct the investigation and record their observations in their science notebooks. Direct the students to make a label drawing of what they observe. Also direct them to respond to the questions raised in item #7 of the investigation by recording their answers in their science notebook. Ask the students to think about their prediction and compare it to what they actually observed. Close by sharing with the students that they will be participating in a making meaning conference the next day and that the data and observations from the last four investigations will be needed. WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 90 DAY SIX: MAKING MEANING CONFERENCE (Teacher directed) 1) Share and display findings. Remember, this is the conferencing stage. It is preferable that students contribute their ideas. Ask students to share the information they have written on their charts, drawings and responses to the guiding questions from the four investigations. If students need to check the information they wrote on their notebooks during the discussion, allow them to do so. 2) Looking for patterns from the data charts: Guide students to analyze their data by asking the following questions: “In Investigation #1 why did air not go up inside the bottle?” “In Investigation #2 what caused the balloon to expand?” “In Investigation #3 what caused the imbalance when one balloon was inflated?” “In Investigation #4 why couldn’t you remove the plastic bag from the can?” Guide students in writing C LAIMS from the evidence on the data chart. As they share information, assistance will be given to students in making associations with the claims and evidence. EX AM PL E: CLAIMS EVIDENCE I claim that……. I claim this because……. I know that……. I know this because……. 1. air takes up space. 1. when we put the bottle into the water, no water went inside the bottle. 2. warm air takes up more space than cold air. 2. when we put the bottle with the balloon on top into the pan of warm water the air inside the balloon got warm and caused the balloon to inflate. 3. air has weight. 3. when we inflated the balloon the balance would not balance any more. 4. air has pressure. 4. when we sealed the can with the plastic bag we could not pull the bag from the can because the air pressure held it. Teacher decides to list as many claims and evidence needed for students to understand process and concept. WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 91 CLAIMS AND EVIDENCE (record in notebook) Teacher says: “You are now going to write four of your own claims and evidence statements. Look at the guiding questions and answer them with a claim using the evidence from what you investigated and read about air. Revisit your notebooks to help you answer the questions. Record them in your notebook. Be ready to share you claims with the class.” Example sentence structures: I claim that ______________ ______. I claim this because __________________. I know that__________________. I know this because _________. Share and discuss claims and evidence with the class . Check and provide feedback. DAY SEVEN CONCLUSION (record in notebooks) Students are then asked to revisit each of their four predictions and write a sentence that states whether the evidence from investigations supported them or not. They are to explain why and provide clear explanations regarding how their evidence supported or didn’t support their predictions. Share some of the statements as a class discussion. Close the day by sharing that the students will learn a little more about air pressure by conducting one final investigation tomorrow using the tools that the NASA scientists provided. DAY EIGHT Open by reviewing the Engaging Scenario from Day One. Then ask the students to review their Focus Question for the lesson. Briefly share several. State that the NASA scientists would like you to conduct one final investigation. “We have learned that air pressure changes a lot as you go up in elevation. But air pressure can also change right on the ground. Usually changes in air pressure happen too slowly for most people to feel. But you have noticed something that changes in air pressure causes –wind.” WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 92 Direct the students to review their notes from their smoke box observations in LE4 and then read “Air Pressure and Winds” (master in Appendix 5-11) to discuss the 6 Guiding Questions from the reading in their small groups. Ask them to record their responses in their science notebooks for a class discussion. NOTE: You may need to provide the students with their smoke boxes to help them visualize responses to the 6 Guiding Questions. Conduct a class discussion of using the 6 Guiding Questions. Sample responses to the 6 Guiding Questions are on next pages. WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 93 WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 94 4 WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 95 Teacher says: “We have learned a lot of new information over the last several days about air pressure and the properties of air.” Now ask the students to help solve the problem faced by the test pilot in the engaging scenario. Ask the students to write an explanation of what happened in their science notebooks. Share several in class. REFLECTION (record in notebooks) . Ask the students to think about the weather unit and respond to one of the following: “What really surprised me about this lesson was…….” “New questions that I have now are…….” “I would like to know more about…….” Students will be asked to share out their sentences. NOTE RETURN TO AND COMPLETE LE 1 AT THIS POINT. WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 96 ACHIEVED CURRICULUM PROFICENCY FEEDBACK: This guide is: To be posted on the board/butcher paper for students to know what is expected in their Notebook To be an evaluation tool for teachers as students work in their Notebooks To be converted into questions as a student self assessment piece PROFICIENCY FEEDBACK GUIDE Investigating Weather Systems: Lesson 5 Competency Goal 3: The learner will conduct investigations and use appropriate technology to build an understanding of weather and climate. 3.02 Discuss and determine how the following are affected by predictable patterns of weather: Temperature Wind direction and speed Precipitation Cloud cover Air pressure 3.04 Explain how global atmospheric movement patterns affect local weather. S T Notebook Component Focus Question One question written clearly . Related to the scenario Prediction 5 sentences They relate to the content covered in the lesson Explains why Data 1 chart Complete and accurate Labeled with titles Claims & Evidence 4 complete sentences demonstrating an understanding of the Guiding Questions Conclusion Accurately shows if predictions were supported or not supported by explanation of why Reflection Writes one statement for further investigation WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 97 Appendix 5-1 ENGAGING SCENARIO “The NASA scientists are now faced with a new challenge. In order to test how to launch the new space vehicle that will transport the solar panels to the International Space Station, the team of scientists needs to understand more about air, especially the air that surrounds the earth. One of the team’s pilots was testing air balloons and reported that on one of his flights the inflated balloons that were hanging outside his plane became smaller as the plane flew higher, and when he landed they were back to the same size again. They are very surprised this happened and are looking for an explanation. They have sent us some tools and some reading materials to find an explanation to what happened. What is the problem to we need to investigate?” WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 98 Appendix 5-2 NASA Atmospheric Poster WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 99 Appendix 5-3 LAYERS Distance from the ground up GASES AIR DENSITY OTHER Thermosphere Mesosphere Stratosphere Troposphere WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 100 Appendix 5-4 Reading: Layers of the Atmosphere Layers of the Atmosphere The atmosphere is divided vertically into four layers based on temperature: troposphere, stratosphere, mesosphere, and thermosphere. The four distinct layers have been identified using thermal characteristics (temperature changes), chemical composition, movement, and density. Troposphere The troposphere begins at the Earth's surface and extends up to 4-7 miles. This is where we live. Within this small layer almost all of our weather is created -the short term changes in temperature, wind, pressure, and moisture that we experience as part of our daily lives. The lower altitudes are the warmest part of the troposphere, in part because the earth's surface absorbs solar radiation and transfers this heat to the air. Generally, as altitude increases, temperature decreases steadily. Therefore, the temperature in the troposphere also decreases with height. As you climb higher, the temperature drops from about 62°F to 60°F. But the earth's topography -- mountain ranges and plateaus -- can cause some lower regions in the troposphere to experience temperature inversions, where temperature actually increases with altitude. Towards the top of the troposphere temperatures fall to WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 101 an average low of -70deg.F (-57deg.C) and wind speeds increase significantly, making the top of the troposphere an extremely cold and windy place. Oxygen (21%) and nitrogen (70%) make up the majority of the gases in the earth's atmosphere, even at much higher altitudes. But it is the lowest level of earth's atmosphere where the right mixture works to support life. Here, living things are also free from the radiation showers which flow down through most of the earth's atmosphere. As the gases in this layer decrease with height, the air becomes thinner. The air density has a range from 1.2 to 0.47 kg per square meter. The height of the troposphere varies from the equator to the poles. At the equator it is around 11-12 miles high, at 50°N and 50°S, 5.5 miles and at the poles just under 4 miles high. The transition boundary between the troposphere and the layer above is called the tropopause. Both the tropopause and the troposphere are known as the lower atmosphere. Stratosphere The Stratosphere extends from the tropopause up to 30 miles above the Earth's surface. This layer holds 19 percent of the atmosphere's gases but very little water vapor. The gases found in the stratosphere are nitrogen (78%) and oxygen (20%) Temperature increases with height as radiation is increasingly absorbed by oxygen molecules which leads to the formation of Ozone. The temperature rises from an average -76°F at tropopause to a maximum of about 5°F at the stratopause due to this absorption of ultraviolet radiation. The increasing WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 102 temperature also makes it a calm layer with movements of the gases slow. The gradual change from the troposphere to the stratosphere begins at approximately 7 miles high. The temperature in the lower stratosphere is extremely stable and cold at -60°F. Here, strong winds occur as part of defined circulation patterns. High cirrus clouds sometimes form in the lower stratosphere, but for the most part there are no significant weather patterns in the stratosphere. The regions of the stratosphere and the mesosphere, along with the stratopause and mesopause, are called the middle atmosphere by scientists. The transition boundary which separates the stratosphere from the mesosphere is called the stratopause. From the middle of the stratosphere and up, the temperature pattern undergoes a sudden change, sharply increasing with height. Much of this temperature change is due to increasing levels of ozone concentration which absorbs ultraviolet radiation. The temperature can reach a balmy 65°F in the upper stratosphere near an altitude of 25 miles high. The air density has a range between 0.36 – 0001kg per square meter. Mesosphere The mesosphere extends from the stratopause to about 50 miles above the earth. The gases, including nitrogen (71%) oxygen (28%) continue to become thinner and thinner with height with an average density of 0.00000001 kg per square meter. As such, the effect of the warming by ultraviolet radiation also becomes less WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 103 and less, leading to a decrease in temperature with height. On average, temperature decreases from about 5°F to as low as -184°F at the mesopause. Such extreme cold allows the formation of so-called noctilucent clouds, thought to be made of ice crystals clinging to dust particles. However, the gases in the mesosphere are thick enough to slow down meteorites hurtling into the atmosphere, where they burn up, leaving fiery trails in the night sky. Thermosphere The Thermosphere extends from the mesosphere to 430 miles above the earth. This layer is known as the upper atmosphere. The gases of the thermosphere are increasingly thinner and lighter than in the mesosphere and are not very dense. The thermosphere receives its name from the return to increasing temperature which can reach a staggering 3,600°F. However, despite the high temperature, this layer of the atmosphere would still feel very cold to our skin because of the extremely thin air. The total amount of energy in this layer is not sufficient enough to heat our skin. These extreme temperatures are caused by the absorption of the sun's shortwave ultraviolet radiation. The thermosphere has layers and they are often referred to as the ionosphere, which deflects some radio signals. Before the modern use of satellites, this deflection by the ionosphere was essential for long distance radio communication. Today, radio frequencies which pass through the ionosphere unaffected are chosen for satellite communication. WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 104 Beautiful auroras, also known as the Northern and Southern lights, occur in the thermosphere when solar flares from the sun create magnetic storms near the poles. Brilliant green and red light is emitted. Even higher -- above the auroras and the ionosphere -- the gases (helium – 71%, oxygen - 28% and nitrogen - 1%) of this final atmospheric layer begin to dissipate, until finally, several hundred miles above the earth, they fade off into the depths of space. WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 105 WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 106 Appendix 5-5 SAMPLE OF GRAPHIC ORGANIZER CHARACTERISTICS OF LAYERS OF THE ATMOSPHERE Earth’s weather happens on first layer Air is thicker at bottom 430 miles high It has four layers ATMOSPHERE It has pressure It gets colder with altitude Pressure is higher at Sea level WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 107 Appendix 5-6: Atmospheric Layers Chart ATMOSPHERIC LAYERS LAYERS DISTANCE FROM THE GROUND UP Temperature Gases Air Density (heavy) OTHER Thermosphere 430 miles high Can reach up to 3600 degrees F Helium 71% Oxygen 28 % Nitrogen 1% Extremely thin, light Contains ionosphere where the northern an southern lights originate Mesosphere 30- 50 miles 5 degrees F 184 degrees F Nitrogen 71% Oxygen 28.4% .00000001 kg/m2 Where meteors burn up Range is between .357 .00001 kg/m2 Contains the ozone layer which absorbs UV rays and affects temperature. Range is between 1.223-.472 kg/m2 Where weather occurs. Stratosphere Troposphere 7 – 30 miles -76 degrees F to 5 degrees F 0 – 7 miles Average 62 degrees F At the top -60 degrees F Nitrogen 78% Oxygen 20 % Nitrogen 70% Oxygen 21 % WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 108 Appendix 5-7 WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 109 Appendix 5-8 WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 110 Appendix 5-9 WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 111 Appendix 5-10 WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 112 Appendix 5-11 WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 113 WCPSS Scaffolded Guided Inquiry Grade 5 - Investigating Weather Systems Lesson 5 Revised 2010 114