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Weather factors
chapter 2
22
Science
8th Grade
05/06/2010

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Term
RADIATION
Definition
heat is transferred directly by electromagnetic waves
Term
convection
Definition
when heat is transferred by the movement of a fluid (like air)
Term
Major wind belts list 3
Definition
trade winds, prevailing westerlies, and polar easterlies
Term
which blow over a smaller area? local winds or global winds?
Definition
local winds
Term
air moves towards an area of higher or lower pressure?
Definition
lower
Term
which are shorter and which are longer wavelengths than visible light?
Definition
infrared (longer) and ultraviolet (shorter)
Term
What causes winds?
Definition
difference in air pressure
Term
Very high , feathery clouds
Definition
cirrus
Term
thunderhead clouds
Definition
cumulonimbus
Term
the clouds that may produce rain or snow
Definition
nimbostratus
Term
precipitation
Definition
any form of water (ice, rain, snow) that falls from clouds
Term
tool used to measure wind speed
Definition
anemometer
Term
tool used to measure temperature
Definition
thermometer
Term
tool used to measure relative humidity
Definition
psychrometer
Term
tool used to measure rainfall
Definition
rain gauge
Term
Doldrums
Definition
calm area where warm air rises
Term
coriolis effect
Definition
the way that Earth's rotation makes winds curve
Term
droughts
Definition
long period of time with no rain
Term
greenhouse effect
Definition
gases hold the heat in the air
Term
Which heats up faster, air over land or water?
Definition
land
Term
Which cools off faster, air over land or water?
Definition
land
Term
why is there very little wind near the equator?
Definition
because the land is equally heated and there is very little movement of air.
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