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15 Cards in this Set
- Front
- Back
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What causes air pressure?
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weight of the atmosphere.
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Air pressure is gratest at ____ and ______ with altitude
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earth's surface and decreases.
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decrease pressure ___ humidity
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increase
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The air's ability to hold vapor depends on what?
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the temp.
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As air absorbs moisture, it's density ______
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decreases
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As your height above the surface of earth increases, atmospheric pressure ___
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decreases
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Cool, dry air is usually ___ dense than warm, moist air
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less
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What name is given to a large group of tiny ice crystals suspended high in the sky?
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clouds
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When the air temp. us below 0 decrees C, we can see the cloud b/c it contains:
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ice crystals
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When water evaporates into the atmosphere, volume _____
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increases
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What is used to measure precip. (units)
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inches
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What quantity is measured in %, not degrees?
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Relative humidity
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What happens then the air is cooled below the dew-point temp?
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a cloud will form
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When we record the weather, usually we do not measure the:
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angle of the sun.
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do you hate mr.mule??
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yes...a ton!
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