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18 Cards in this Set
- Front
- Back
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weather
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the short term state of the atmosphere including temperature, humidity, precipitation, wind, and visibility
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humidity
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amount of water vapor in the air |
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relative humidity |
ratio of amount of water vapor in the air to the maximum amount of water vapor the air can hold at a set temperature |
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condensation
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change of state from gas to liquid |
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cloud |
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precipitation |
any form of water that falls to the earth's surface from clouds |
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air mass |
large body of air where temperature and moisture content are constant throughout |
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front |
boundary b/t air masses of different densities and usually different temperatures |
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cyclone
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area in atmosphere that as lower pressure than the surrounding areas and has winds that spiral toward the center |
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anticyclone
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rotation of air around a high pressure center in the direction opposite to earth's rotation
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thunderstorm
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usually brief, heavy storm that consists of rain, strong winds, lightning, and thunder |
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lightning |
electric discharge that takes place b/t two oppositely charges surfaces, such as b/t a cold and the ground, b/t two clouds, or b/t two parts of the same cloud |
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thunder
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sound caused by the rapid expansion of air along an electrical strike |
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tornado
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destructive rotating column of air that has very high wind speeds, is visible as a funnel shaped could and touches the ground
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hurricane |
severe storm that develops over tropical oceans and whose strong winds of more than 120 km/h spiral in toward the intensely low pressure storm center |
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thermometer
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measures temperature |
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barometer |
measures atmospheric pressure |
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anemometer |
measures wind speed |
