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15 Cards in this Set
- Front
- Back
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atmosphere |
the air that surrounds the Earth or another body in space |
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troposphere |
the layer nearest the Earth in the atmosphere, where we live and where most weather takes place |
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stratosphere |
the second layer in the atmosphere |
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ozone |
a thin layer of gas found in the stratosphere that filters out much of the harmful radiation from the sun |
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mesosphere |
the third layer in the atmosphere |
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ionosphere |
the fourth layer in the atmosphere, where there are many electrally charged particles |
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thermosphere |
the outermost layer in the atmosphere |
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air pressure |
the weight of the gases pressing down on the Earth |
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barometer |
an instrument that measures air pressure |
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humidity |
the amount of water vapor in the air at any given time |
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precipitation |
any form of water that falls from the air |
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dew point |
the temperature at which water vapors turns into liquid water |
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cirrus cloud |
a high-altitude cloud made of ice crystals |
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stratus cloud |
a low-lying gray cloud that covers a wide area |
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cumulus cloud |
a big, puffy low-altitude cloud that usually signals good weather |
