Water on Earth

Front

What percent of the Earth is covered by water?

Back

70% of the Earth's surface is covered by water.

Front

Where is most of the Earth’s water found?

Back

Most of the Earth's water is found in oceans.

Front

What is groundwater?

Back

Groundwater is water that is found underground in reservoirs called aquifers.

Front

What is an aquifer?

Back

An aquifer is an underground layer of water-bearing rock that can provide water for drinking and irrigation.

Front

What is an example of salt water?

Back

An ocean is an example of salt water.

Front

Where is most of the Earth’s freshwater located?

Back

Most of the Earth's freshwater is located in glaciers.

Front

What is the difference between salt water and freshwater?

Back

Salt water contains a higher concentration of salt, while freshwater has a low salt concentration.

Front

What is the water cycle?

Back

The water cycle is the continuous movement of water on, above, and below the surface of the Earth.

Front

What are the main processes of the water cycle?

Back

The main processes are evaporation, condensation, precipitation, and infiltration.

Front

What is evaporation?

Back

Evaporation is the process by which water changes from a liquid to a gas.