Unit 2: Hydrology Part 1

Front

What is evaporation?

Back

The part of the water cycle when the sun heats up water, turning it from a liquid into water vapor or steam. It rises from the ground into the air.

Front

Why is so little of the water on Earth available for human use?

Back

97% of total water on Earth is salt water, and most of the remaining 3% is freshwater frozen in ice caps and glaciers. Less than 1% is available fresh water.

Front

Which contains MOST of the world’s fresh water supply?

Back

Glaciers.

Front

What is the distribution of water on Earth?

Back

3% freshwater, 97% salt water.

Front

What percentage of Earth's surface water is freshwater?

Back

3%.

Front

What is the water cycle?

Back

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

Front

What is condensation?

Back

The process by which water vapor in the air cools and turns back into liquid water, forming clouds.

Front

What is precipitation?

Back

Any form of water that falls from clouds to the Earth's surface, including rain, snow, sleet, and hail.

Front

What is groundwater?

Back

Water that is stored underground in soil and rock layers.

Front

What is the difference between saltwater and freshwater?

Back

Saltwater contains a high concentration of salt, while freshwater has a low concentration of salt.