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Science Vocab
asians
21
Science
8th Grade
01/30/2012

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Term

 

 

 

 

Weather

Definition
the condition of the atmosphereat a particular time and place.
Term
Water Cycle
Definition
the continuous movement of water from water sources into the air, onto landinto and over the ground.
Term
Humidity
Definition
the amount of water vapor or moisture in the air
Term
Relative humidity
Definition

The amount of moisture in the air

 

Term
Condensation
Definition
the change of state from a gas to a liquid
Term
dew point
Definition
the temperature to which air must cool to be completley saturated
Term
cloud
Definition
a collection of millions of crystals
Term
precipitation
Definition
solid or liquid water that falls from the air too the earth.
Term
air mass
Definition
a large body of air that has similar temperature and moisture throughout.
Term
front
Definition
the boundary that forms between two different air masses
Term
thunderstorm
Definition
small, intense, weather systems that produce strong winds heavy rain and lightning; thunder
Term
lightning
Definition
the electrical discharce that occurs between two oppositly charged surfaces
Term
thunder
Definition
the sound that results from the rapid expansion of air along a lightning strike
Term
tornado
Definition
a small rotqating collection of hot and cold winds moving rapidly
Term
hurricane
Definition
a large rotating tropical weather system with speeds at least 119 km/h
Term
thermometer
Definition
a tool used to measure air temperature
Term
barometer
Definition
an instrument used to measure air pressure
Term
windstock
Definition
a device used to measure wind direction
Term
wind vane
Definition
a device used to measure wind direction
Term
anemometer
Definition
a device used to measure wind speed
Term
isobars
Definition
lines that connect points of equal air pressure
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