The constant movement of water among the oceans, the atmosphere, solid Earth, and the biosphere.

The movement of surface water into rock or soil through cracks or pore spaces

The process of converting a liquid to a gas.

Water absorbed and released into the atmosphere by plants.

Water underground in the zone of saturation.

The flat, low-lying portion of a stream valley subject to periodic flooding.

An elevated landform that parallels a stream and acts to confine its waters, except during flood stage.

The land that water flows across or under on its way to a river.

The land area that contributes water to a stream.

land that separates waters flowing to different rivers, basins, or seas.

Safe to drink

Using groundwater to water crops

A structure that is built across a river

An artificial body of water that usually forms behind a dam

Water that flows over the land surface rather than seeing into the ground.

Rain falls on roads, driveways, parking lots, rooftops and other paved surfaces that do not allow water to soak into the ground.