Watersheds TEKS 7.8C

Front

What is an aquifer?

Back

A layer of permeable rock that retains and filters water.

Front

What is groundwater?

Back

Water that collects in cracks and pores in underground soil and rock layers.

Front

What is point source water pollution?

Back

A single identifiable and localized source of water pollution, such as wastewater discharge into a stream.

Front

What is a watershed?

Back

An area of land where the surface water and ground water drain into a particular body of water; separated by other watersheds by drainage divides.

Front

What is surface water?

Back

Water from precipitation that flows into a stream, which flows into rivers, lakes, estuaries, reservoirs, wetlands or the ocean.

Front

What is a drainage divide?

Back

A geographical boundary that separates one watershed from another.

Front

What is the water table?

Back

The upper surface of the zone of saturation, where the soil or rock is fully saturated with water.

Front

What is the zone of aeration?

Back

The area above the water table where soil and rock are not saturated with water.

Front

What is non-point source water pollution?

Back

Pollution that comes from multiple, diffuse sources rather than a single, identifiable source.

Front

What is a tributary?

Back

A smaller stream or river that flows into a larger river or lake.