Term Definition
Groundwater The water beneath the surface of the ground consisting largely of surface waterthat has seeped down the source of water in springs and wells.
Water cycle The continuous movement of water from the ocean to the atmosphere to the land 3and back to the ocean
Precipitation Is rain snow sleet or hail that falls from clouds onto the earths land and oceans.
Evaporation Takes place when water from the oceans and the earths surface changes into water vapor. Energy from the sun causes evaporation. Water gains energy during evaporation.
Condensation Take place when water vapor cools and changes into water droplets that form clouds in the atmosphere. Water loses energy during condensation
Percolation Is the downward movement of water through pores and other spaces in oil due to gravity.
Runoff Is precipitation that flows over land into streams and rivers this water later enters oceans
Water table The upper surface of underground water the upper boundary of the zone of saturation
Aquifer A body of rock or sediment that stores groundwater and allows the flow of groundwater
Porosity The percentage of the total volume of a rock or sediment that consist of open spaces
Permeability The ability of a rock or sediments to let fluids pass through its open spaces or pores.
Artesian A spring whose water flows from a crack in the cap rock over aquifer.
Impermeable Realating to a material through which substances such as some types of contact lenses are permeable to gas but impermeable to liquid.
Artesian spring A spring whose water flows from a crack in the cap rock over the aquifer.
Recharge zone An area in which water travels downward to become part of an aquifer.
Point source pollution Pollution that comes from a specific site
Nonpoint source pollution Pollution that comes from many sources rather than from a single specific site.
Fresh water

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