Freshwater and Water Cycle
Terms in this set (30)
The line between the water-saturated soil and the soil that is not saturated with water (beneath the Earth's surface)
The percentage of the total volume of a rock or sediment that consists of open spaces.
zone of saturation
Area where the rock's pores are filled with water.
An area beneath the earth's surface which extends downward until all of the open spaces in sediment and rock are completely filled with water.
Ability of rock or soil to allow water to flow through it.
A well in which water rises because of pressure within the aquifer.
A flow of groundwater that emerges naturally at the ground surface.
water that fills the cracks and spaces in underground soil and rock layers.
Water above the surface of the land, including lakes, rivers, streams, ponds, floodwater, and runoff.
bodies of moving water, contained within a bank (sides) and bed (bottom).
are large, natural streams of fresh water.
pollution that comes from many sources rather than from a single, specific site.
point source pollution
Pollutants discharged from a single identifiable location (e.g., pipes, ditches, channels, sewers, tunnels, containers of various types).
Process in which sediment is laid down in new locations.
small river or stream that flows in to a larger river or stream; a branch of the river.
A body of rock or sediment that stores groundwater and allows the flow of groundwater.
Water Cycle (Hydrologic Cycle)
The continuous movement of water on, above, and below the surface of the Earth.
Any form of water that falls from clouds and reaches Earth's surface.
The change of a substance from a liquid to a gas
The change of state from a gas to a liquid
The downward movement of water through soil and rock due to gravity.
Water flowing off the land into bodies of surface water.
rain, snow melt, or other water that flows in underground streams, drains, or sewers.
an increase of water in amount over a period of time (body of water)
Evaporation of water from the leaves of a plant
A change directly from the solid to the gaseous state without becoming liquid
Flow of water from the land surface into the subsurface.
The land area that supplies water to a river system.
used to determine the biodiversity of species in a given ecosystem
zone of aeration
Zone in soil that is not saturated with water and that lies above the water table.
A land area that is covered with a shallow layer of water during some or all of the year