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* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Study Guide #1 1. Write the layer of the atmosphere beside its unique characteristic. a. b. c. d. e. where meteors burn up northern lights occur here the ozone is found here clouds are here space satellites orbit here ___mesosphere__________________ ___thermosphere__________________ ___stratosphere___________________ ____troposphere__________ ____exosphere___________________ 2. What is the purpose of the ozone layer? Protect Earth from harmful UV sun rays 2. What gas makes up most of the atmosphere? ___nitrogen_ 3. This is used to measure air pressure. _________barometer____________ 4. What is the definition for air pressure? _the weight of the atmosphere____ 5. If the barometer goes down, the air pressure goes_____down______ 6. Cold temperatures mean ___high______ pressure 7. Wind moves from __high_____ pressure to ____low______ pressure. 8. Why is air pressure greater at the bottom of a mountain? _____there are more air molecules pushing down_____________________ 9. Why does warm air create less air pressure? ____warm air molecules are more spread out so they weigh less__________ 10. In which layer of the atmosphere is the air pressure the greatest? _troposphere__ 11. Draw a picture to show how the number of air molecules change as you climb a mountain. 12. Warm air rises sinks and cold air rises sinks 13. Label the layers of the atmosphere __5___exosphere_____________ __4____thermosphere____________ __3___mesosphere_____________ __2____stratosphere____________ __1___troposphere_____________ EARTH 14. Air pressure decreases as altitude ____increases___________ 15. As you go higher in the troposphere, the temperature ___decreases_____ 16. Which temperature of air weighs more – hot or cold? Why? Cold air weighs more because the molecules are closer together. 17. What are two reasons Earth’s atmosphere is compared to a blanket? 1. protects Earth from harmful rays from Sun 2. keeps the Earth warm 18. Write the cloud type next to each description Thin, feather-like clouds made of ice crystals ____cirrus_________ Low clouds that cover the entire sky ______stratus_____________ Puffy clouds that look like cotton balls _____cumulus_______________ 19. List the clouds in order from closest to Earth’s surface to highest in the troposphere. Cirrus(highest) cumulus stratus (lowest) 20. What is the main process of cloud formation? condensation 21. What type of clouds might you observe on a fair weather day (no rain)? Cirrus or cumulus clouds 22. What type of clouds produce thunderstorms? cumulonimbus