Term Definition
Water cycle The continuous movement of water from the ocean to the atmosphere to the land and back to the ocean.
Evaporation Takes place when water from the ocean and the earths surface changes into water vapor. Energy from the sun causes evaporation. Water gains energy during evaporation.
Condensation Takes place when vapor cools and changes to water droplets that form clouds in the atmosphere. Water loses energy during condensation
Precipitation Is rain,snow, sleet, or hail that falls from clouds onto the earths land and oceans.
Transportation The process by which plants release water vapor into the air.
Percolation Is the downward movement of water through pores and other spaces due to gravity.
Water table
Runoff
Zone of aeration
Zone of saturation
Well
Groundwater
Attestation Spring
Porosity
Permeability
Impermeable
Aquifer
The upper surface of underground water; the upper boundary of the zone of saturation.
Precipitation that flows over land into streams and rivers. This water later inters the ocean.
Rainwater passes through the upper zone.
Farther down, the water collects in an area.
A human-made hole that is deeper than the level of the water table.
The water located within the rocks below the earths surface.
Artesian Spring A spring whose water flows from a crack in the cap rock of the aquifer.
The percentage of the total volume of a rock or sediment that consists of open spaces.
The ability of a rock or sediment to let fluids pass through its open spaces, or pores.
A rock that stops the flow of water.
A body of rock or sediment that stores groundwater and allows the flow of groundwater.
Fresh water

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