The Study Guide is NOT the Test - It is a GUIDE to help you STUDY the concepts on the unit TEST! 8.2 Study Guide Advanced Key 8.2.ADV → EM Spectrum/CFC’s 1. List the parts of the EM spectrum in order from the LEAST energy to the MOST energy ● Radio Waves ● Microwaves ● Infrared Radiation ● Visible Light ● Ultraviolet Radiation ● X-Rays ● Gamma Rays 2. Which part of the EM spectrum has the longest wavelength? ● Radio Waves 3. Which part of the EM spectrum has the shortest wavelength? ● Gamma Rays 4. Match the following purposes with their part on the EM spectrum ● Colors of the rainbow → Visible Light ● Causes sunburns → Ultraviolet Radiation ● Makes objects feel warmer → Infrared ● Used for communication → Radio Waves ● Used to treat some cancers → Gamma Rays ● Used to determine if you broke a bone → X-Rays ● Used in radar detectors → Microwaves ● Used to broadcast television signals → Radio ● Used in remotes → Infrared Radiation ● Used in security devices in airports → X-Rays 5. What are CFC’s ● Chlorofluorocarbons 6. What products are CFC’s found in? ● Aerosols, Refrigeration systems, Air conditioners 7. Why are CFC’s bad? ● They go up into the stratosphere and they destroy ozone molecules. ● CFC’s can create a thinning ozone layer which would allow more UV radiation through 8. Why did we develop a protocol to reduce CFC’s? ● We wanted to restore / stop destroying the ozone layer 8.2.1 → Layers of the Atmosphere 9. List the layers in order from Outer Space to Earth ● Exosphere ● Thermosphere ● Mesosphere ● Stratosphere ● Troposphere 10. Which two layers decrease in temperature? ● Troposphere and Mesosphere 11. Which layer is the densest? ● Troposphere 12. Which layer is the least dense ● Exosphere 13. Identify which layer the following items belong ● Aurora Borealis → Thermosphere ● Humans / Animals → Troposphere ● Meteors → Mesosphere ● Ozone Layer → Stratosphere ● Planes → Stratosphere ● Satellite → Exosphere ● Space Shuttle → Exosphere ● Weather → Troposphere ● Mountains → Troposphere ● Weather Balloon → Stratosphere 8.2.2 → Ozone Layer 14. What does the ozone layer protect us from? ● Too much ultraviolet (UV) radiation 15. What can happen to humans if we have too much UV radiation? ● Skin Cancer ● Cataracts ● Weakened Immune System ● Wrinkles 16. What can happen to plants if they get too much UV radiation? ● Lower growth rates → Less Photosynthesis ● Lower production rates → Burning 17. What are the three different types of UV radiation? ● UVA ● UVB ● UVC 18. How much (%) of each type of UV radiation hits the earth? ● UVA → 100% Hits Earth ● UV B → 50% ½ is blocked by the ozone layer The Study Guide is NOT the Test - It is a GUIDE to help you STUDY the concepts on the unit TEST! ● ● We wanted to eliminate the amount of UV radiation that hit Earth 8.2.1 → Layers of the Atmosphere 19. How would the amount of UV radiation change if we had MORE ozone? ● Less UV radiation (UVB) would hit the Earth 20. How would the amount of UV radiation change if we had LESS ozone? ● More UV radiation (UVB) would hit the Earth 8.2.3 → Greenhouse Effect 21. What does the greenhouse effect protect us from? ● Freezing. It keeps the earth warm by trapping infrared radiation 22. What path can infrared radiation take as it enters our atmosphere? ● Reflected by greenhouse gases ● Absorbed into the earth ● Reflected by earth into atmosphere ● Reflected by earth and reflected by greenhouse gases → Trapped within atmosphere 23. What will happen if we increase the amount of greenhouse gases in the atmosphere? ● More infrared radiation would be trapped ● Earth’s temperature would increase 24. What will happen if we decrease the amount of greenhouse gases in the atmosphere? ● Less infrared radiation would be trapped? ● Earth’s temperature would decrease 25. What would happen if we didn’t have greenhouse gases? ● No infrared radiation would be trapped ● It would be hot during the day and cold at night 8.2.4 → Global Warming 26. Why is it important to clarify evidence? ● To get the entire picture ● To determine the authors bias and experience 27. What clarifying questions would you ask about the following piece of evidence? ● Evidence: Baseball is the most popular sport for students in the United States ● QUESTIONS: UVC → 0 % All is blocked by the Ozone Layer 8.2.4 → Global Warming Continued 28. What clarifying questions would you ask about the following piece of evidence? ● Evidence: Polar bears are increasing in population and aren’t impacted by the warming temperatures ● QUESTIONS: ● Does your data include polar bears from around the world? ● Does it include protected polar bears (in reservations or zoos) or polar bears who aren’t living in their natural environment (zoos) ● How much of an increase is it? ● Have their population been increasing for years? Months? 29. Why is it important to identify bias? ● To get the real information 30. How do you determine if the author is biased? ● Look at their qualifications ● Determine the overall tone ● Who does the author work for 31. 32. 33. 34. ● Is the information factual What is global warming? ● The gradual, permanent increase in earths global temperature What causes global warming? ● There are natural ups and downs but human activity is also to blame How is our CO2 emissions related to the global temperature? Be very specific ● As humans emit additional CO2 the amount of CO2 in the atmosphere increases ● As the amount of CO2 in the atmosphere increases, additional infrared radiation is trapped ● As additional infrared radiation is trapped our global temperatures increase What will happen if our CO2 levels continue to increase? ● Our global temperature will increase The Study Guide is NOT the Test - It is a GUIDE to help you STUDY the concepts on the unit TEST! ● ● ● ● Has it always been the most popular? Were both boys and girls surveyed? Is this the case within every community? Every culture? Define students - K-12?
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