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Amount of water vapor in the air.
Humidity
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Condensed droplets of water floating in the atmosphere.
Cloud
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Chain of deep freshwater lakes that contain about 20 percent of the earths freshwater
The Great Lakes
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Aquifer
Stores water beneath the earth's surface.
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Water vapor turns into liquid
Condensation
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Body of water surrounded by land.
Lake
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The degree of compactness of a substance.
Density
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Water that contains a very low concentration of salt
Freshwater
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Movement of water through the soil
Percolation
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Frozen river that flows downhill.
Glacier
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Water returns to the earth from the atomosphere.
Precipitation
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Water evaporates from the trees and plants back into the atmosphere.
Transpiration
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Large natural stream of flowing water
River
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Precipitation that has soaked through the soil
Groundwater
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Water in the form of gas.
Water Vaport
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Circulation of water between the earths surface and atmosphere
The Water Cycle
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Water that does not soak into the ground.
Runoff
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Water is turned into gas.
Evaporation
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