Download Study Guide #1

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. Which picture best shows the arrangement of air molecules as the altitude
increased?
XXXXXX
XXXXX
XXXX
XXX
XX
X
X
XX
XXX
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XXXXX
XXXXXXX
X
12. Warm air rises
XXXXXXX
XXXX
X X
XX
XX XX
X XX
XX XXX
X X X X
sinks
XXXXX
X X
X
X
X X XX
XXX X
X X X XX
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. What is humidity? __the amount of water vapor in the air______________
19. 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_______________
20. List the clouds in order from closest to Earth’s surface to highest in the troposphere.
Cirrus(highest)
cumulus
stratus (lowest)
21. What is the main process of cloud formation?
condensation
22. What type of clouds might you observe on a fair weather day (no rain)?
Cirrus or cumulus clouds