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Chapter 10 - Atmosphere
Study Guide
16
Science
7th Grade
03/11/2010

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Cards

Term
What is the lowest layer of the atmosphere?
Definition
Troposphere
Term
What is the coldest layer of the atmosphere?
Definition
Mesosphere
Term
What is the most abundant gas in the air we breathe?
(75% of the air)
Definition
Nitrogen
Term
In what layer of the atmosphere is the ozone layer located?
Definition
Stratosphere
Term
Where does most of the oxygen in the Earth’s atmosphere come from?
Definition
Plants
Term
What happens to the air pressure when you increase altitude?
Definition
Decreases
Term
What layer is above the troposphere?
Definition
Stratosphere
Term
Does cold air sink or rise at the poles?
Definition
Sinks
Term
How is wind created?
Definition
By differences in air pressure
Term
What’s the top layer of the atmosphere?
Definition
Thermosphere
Term
Wind belts between 30 degrees and 60 degrees latitude are called?
Definition
Westerlies
Term
Where does most of the Carbon Monoxide come from?
Definition
Fuel burning vehicles
Term
What is the greenhouse effect?
Definition
Gases in the atmosphere trap thermal energy (natural heating process)
Term
What is the coriolis effect?
Definition
Curving of moving objects, such as wind, by the Earth's rotation
(Effected by Northern and southern hemisphere)
Term
Wind belts that extend from poles to 60 degrees latitude?
Definition
Polar Easterlies
Term
What is convection?
Definition
Transfer of thermal energy by movement of liquids of gases
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