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 Key
8.2.1 → Layers of the Atmosphere
1. List the layers in order from Outer Space to Earth
●
Exosphere
●
Thermosphere
●
Mesosphere
●
Stratosphere
●
Troposphere
2. Which two layers decrease in temperature?
●
Troposphere and Mesosphere
3. Which layer is the densest?
●
Troposphere
4. Which layer is the least dense
●
Exosphere
5. 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
6. What does the ozone layer protect us from?
●
Too much ultraviolet (UV) radiation
7. What can happen to humans if we have too much
UV radiation?
●
Skin Cancer
●
Cataracts
●
Weakened Immune System
●
Wrinkles
8.2.2 → Ozone Layer Continued
8. What can happen to plants if they get too much UV
radiation?
● Lower growth rates ​→​ Less Photosynthesis
● Lower production rates ​→​ Burning
9. What are the three different types of UV radiation?
● UVA
● UVB
● UVC
10. 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
● UVC ​→​ 0 % All is blocked by the Ozone
Layer
8.2.3 → Greenhouse Effect
11. What does the greenhouse effect protect us from?
● Freezing. It keeps the earth warm by
trapping infrared radiation
12. 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
13. 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
The Study Guide is NOT the Test - It is a GUIDE to help you STUDY the concepts on the unit TEST!
8.2.3 → Greenhouse Effect Continued
14. 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
15. 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
16. Why is it important to clarify evidence?
● To get the entire picture
● To determine the authors bias and
experience
17. 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:
● 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?
18. 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?
8.2.4 → Global Warming Continued
19. Why is it important to identify bias?
●
To get the real information
20. How do you determine if the author is biased?
●
Look at their qualifications
●
Determine the overall tone
●
Who does the author work for
●
Is the information factual
21. What is global warming?
●
The gradual, permanent increase in Earth’s
global temperature
22. What causes global warming?
●
There are natural ups and downs but
human activity is also to blame
23. How is our CO​2​ emissions related to the global
temperature? Be very specific
●
As humans emit additional CO​2​ the amount
of CO​2​ in the atmosphere increases
●
As the amount of CO​2​ in the atmosphere
increases, additional infrared radiation is
trapped
●
As additional infrared radiation is trapped
our global temperatures increase
24. What will happen if our CO​2​ levels continue to
increase?
●
Our global temperature will increase