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31 Cards in this Set
- Front
- Back
meteorologist |
scientists who study the weather |
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greenhouse effect |
the blanketing function of the earth's atmosphere which prevents the earth's heat from escaping easily into space |
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air pressure |
the pressure of atmospheric or compressed air; the total weigh o fair on some particular place on earth |
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relative humidity |
the measurement of humidity that uses a prescentage to compare the actual amount of water vapor in the air with the maximum amount of vapor the air could hold at the temperature |
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saturated |
refers to something such as a gas or liquid that has absorbed all of a certain substance that it can possibly hold |
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dew point |
the temperature at which cooling air becomes saturated and begins to release some of its water vapor through condensation |
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tropopause |
the troposphere's topmost boundary; the location of a temperature inversion |
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front |
the boundary between two air masses |
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source region |
a large area of land or ocean with nearly the same temperature across its entire surface |
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air mass |
a single large unit of air with uniform temperatures and humidity characteristics; forms over a source region |
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fog |
a cloud on the ground |
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precipitation |
any form of water that falls from the clouds to the earth |
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thunderhead |
another name for a cumulonimbus cloud; also called a thundercloud |
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step leader |
a thin channel of charged air that descends from a cloud toward the ground through which the lightning bolt can travel |
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humidity |
the amount of water vapor in the air |
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False |
at a warm front, cold air ploughs under warm air, forcing the warm air to rise rapidly upward
true or False |
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True |
The atmosphere's greenhouse effect prevents the earth's heat from escaping easily into space
True or False |
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True |
saturated air has a relative humidity of 100%
True or False |
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False |
A tornado warning is issued when weather conditions could produce a tornado
true or false |
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false |
at temperatures near freezing, falling ice crystals clump together into large snowflakes
true or false |
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false |
sheet lightning is heat lightning far off in the distance
true or false |
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false |
tropical rain starts out as tiny ice crystals in the top of clouds
true or false |
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cirrus |
I fly high and am easy to sight, for I look like a mare's tail all wispy and white |
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cirrocummulus |
a heap cloud am I, but I fly so high that I look like fish scales in the sky |
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altocummulus |
I'm patchy and puffy, all bumpy and white; I soar in the sky at a medium hight |
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alto stratus |
I'm a thickening sheet at medium height that tries very hard to block the sunlight |
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stratus |
like a blanket that's darkish-gray, I fly low to drizzle your day |
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stratocumulus |
I'm a low layer cloud, that is true, yet bumpy and rolling I fly in your view |
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nimbostratus |
I'm a heavy blanket all dark and gray; when I bring rain, I stay for the day |
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cumubus |
I'm small and light, and puffy and white; I'm seen in good weather when the sun shines bright
|
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cumulunimbus |
on hot summer days I thunder and shout, pouring raindrops and hail until I wear out |