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Science T 6 Review

Water in the Atmosphere

evaporation water molecules are heated by the sun and turn to water vapor
condenstation water vapor changes into a liquid water
dew point temperature at which condensation begins
relative humidity percent of water vapor in the air compared to the maximum amount of water the air can hold
humidity a measure of the amount of water vapor in the air
psychrometer a tool used to measure relative humidity
precipitation any form of water that falls from the clouds and reaches the Earth's surface
5 types of precipitation? rain, hail, sleet, snow, freezing rain
snow when water vapor in converted directly into ice crystals that fall to the ground
sleet raindrops that fall through a layer of air and freeze into solid particles of ice before they hit the ground.
freezing rain raindrops that freeze when they hit cold surfaces
hail pellet of ice that has layers and eventually becomes heavy enough to fall to the ground
rain guage a tool used to measure the amount of rainfall
3 factors that determine weather air temp, humidity, air pressure
Air Mass huge body of air that has similar temperature, pressure, and humidity
Cycylones counter clockwise swirling wind storms
anemometer tool used to measure wind speed
Created by: mrsrooney