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 surface enters the soil
Evaporation The process by which water changes from a liquid to a gas or water vapor
Condensation
The process by which water vapor changes back to a liquid. Responsible for forming clouds. The opposite of evaporation.
Transpiration The process by which moisture is carried through plants from roots to small pores on the underside of leaves, it changes to vapor and is released into the atmosphere.
Precipitation Water released from clouds in the form of rain, sleet, snow, or hail.
Ground water The part that continues downward through the soil until it reaches rock material that I saturated.
Water table The 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 is under pressure; especially one in which the water flows to the surface naturally.
Aquifer A body of permeable rock that can contain or transmit groundwater.
Springs The result 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 this it.

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