Term Definition
Erosion The process by which wind, water, ice, or gravity transports soil and sediment from one location to the ocean.
Water cycle The continuous movement of water from the ocean to the atmosphere to the land.
Tributary A stream that flows or into a larger stream
Watershed The area of land that drained by a water system
Divide The boundary between drainage areas that have streams that flow in opposite directions divide
Channel The path that a stream follows
Load The material carried by a stream
Deposition The process in which material is laid down
Delta A fan-shaped mass of material deposited at the mouth of a stream
Alluvial Fan A fan-shapd mass of material deposited by a stream when the slope of the land decreases sharply
Floodplain A area along a river that forms sediments deposited by a stream when the slope of the land decreases
Water table The upper surface of underground water; the upper boundary of the zone of saturation
Porosity The percentage of the total volume of a rock or sediment that consists of open spaces
Permeability The ability of a rock or sediment to let fluids pass through its open spaces, or pores
Recharge Zone An area in which water travels downward to become part of an aquifer
Artesian spring A spring whose water flows from a crack in the cap rock over the aquifer
Runoff the draining away of water (or substances carried in it) from the surface of an area of land, a building or structure, etc.
Well A water well is an excavation or structure created in the ground by digging, driving, boring, or drilling to access groundwater in underground aquifers. The well water is drawn by a pump, or using containers, such as buckets, that are raised mechanically
Evaporation the process of turning from liquid into vapor.
Condensation water that collects as droplets on a cold surface when humid air is in contact with it.
percipitation the action or process of precipitating a substance from a solution.
Transpiration
Percolation Percolation is the process of a liquid slowly passing through a filter. It's how coffee is usually made. Percolation comes from the Latin word percolare, which means "to strain through." Percolation happens when liquid is strained through a filter, like w
Groundwater water held underground in the soil or in pores and crevices in rock.
permeability the ability of a rock or sediment to let fluids pass through its open spaces or pores
impermeable
Fresh Water

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