Fresh Water

Term Definition
Water Cycle The continuous movement of water between the atmosphere, the land, and the oceans
Infiltration The process by which water on the ground ground surface enters the soil
Evaporation The process by which water changes from a liquid to a gas or vapor
Condensation The process by which water vapor changes back to a liquid. Responsible of forming clouds. The opposite of evaporation.
Transpiration The process which moisture moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere
Precipitation Water released from clouds in the form of rain, freezing rain, sleet, snow, or hail.
Groundwater The part that continues downward through the soil until it reaches rock material that is saturated
Water table Upper surface of underground water; the upper boundary of the zone of saturation. The boundary between the zone of aeration and the zone of saturation.
Artesian well A well in which water under pressure; especially :one in which the water flows to the surface naturally.
Precipitation
Aquifer A body of permeable rock that can contain or transmit groundwater.
Springs The results of an aquifer being filled to the point that the water overflows onto the land surface.
Zone of aeration Zone nearest the surface where gaps between soil are filled with both air and water.
Zone of saturation Below the zone of aeration where the gaps are filled with water
Permeable ability of a substance to allow another substance to pass through it, especially the ability of a porous rock, sediment, or soil to transmit fluid through pores and cracks.
Non-permeable Does not have the ability of a substance to allow another substance to pass through it
Porosity Quality of being porous, or full of tiny holes. Allows water to pass through it.
Runoff
Porosity Precipitation that flows over land into streams and rivers. This water later enters the oceans.

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