SCI CHP 15 TEST: Ground Water

Front

What is groundwater?

Back

Water that is found underground in the saturated zone, filling the spaces between rocks and soil.

Front

What is an aquifer?

Back

An underground layer of water-bearing rock that can yield water to wells and springs.

Front

What are the three main types of wells?

Back

Dug, driven, and drilled.

Front

What is the saturated zone?

Back

The area underground where all the spaces between rocks and soil are filled with water.

Front

What is the unsaturated zone?

Back

The area above the water table where the spaces between rocks and soil contain both air and water.

Front

What causes subsidence?

Back

The gradual sinking of the ground due to the removal of underground water or other materials.

Front

Why is groundwater more vulnerable than surface water?

Back

Groundwater is less visible, has slower recharge rates, and is more susceptible to contamination.

Front

What is a spring?

Back

A natural source of groundwater that flows to the surface.

Front

What is the water table?

Back

The upper surface of the saturated zone, below which all spaces are filled with water.

Front

What is the main source of groundwater recharge?

Back

Precipitation that infiltrates the ground and replenishes aquifers.