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Weather and Climate
Differences in pressure,heat,air movement, and humidity result in changes of weather thus affect climate.
10
Science
6th Grade
05/21/2009

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Term
Weather
Definition
the short-term state of the atmosphere, including temperature, humidity, precipitation, wind and visibility
Term
Humidity
Definition
the amount of water vapor in the air
Term
Dew Point
Definition
at constant pressure and water vapor content, the temperature at which the rate of condensation equals the rate of condensation
Term
Relative Humidity
Definition
the ratio to the amount of water vapor in the air to the amount of water needed to reach saturation at a given temperature
Term
Condensation
Definition
the change of state from a gas to liquid
Term
Precipitation
Definition
any form of water that falls to Earth's surface form the clouds
Term
Lightning
Definition
an electrical discharge that happens between a positively charged area and a negatively charged area
Term
Thunder
Definition
the sound caused by the rapid expansion of air along an electrical strike
Term
Tornado
Definition
a destructive, rotating column of air that has very high wind speeds and that may be visible as a funnel-shaped cloud
Term
Hurricane
Definition
a large, rotating tropical weather system that has wind speeds of at least 120 km/h
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