2.3 Water on Earth

Front

What is the main reason most of Earth's freshwater is unavailable for human use?

Back

Most of Earth's freshwater is frozen in ice or glaciers.

Front

What percentage of Earth's surface is covered in water?

Back

75% of Earth's surface is covered in water.

Tags

NGSS.MS-ESS2-4

Front

What is the process called when water vapor cools and turns into a liquid?

Back

This process is called condensation.

Tags

NGSS.MS-ESS2-4

Front

What is transpiration in the context of the water cycle?

Back

Transpiration is the process of water evaporating from plant leaves.

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

Front

What type of water makes up 97% of the total water on Earth?

Back

97% of the total water on Earth is salt water.

Front

What is the term for the continuous movement of water on, above, and below the surface of the Earth?

Back

The term is the water cycle.

Tags

NGSS.MS-ESS2-4

Front

What is evaporation in the water cycle?

Back

Evaporation is the process where liquid water turns into water vapor.

Tags

NGSS.MS-ESS2-4

Front

What is precipitation in the water cycle?

Back

Precipitation is any form of water that falls from clouds to the Earth's surface, such as rain, snow, sleet, or hail.

Tags

NGSS.MS-ESS2-4

Front

What is groundwater?

Back

Groundwater is water that is found underground in aquifers, which are layers of rock and soil that hold water.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

Front

What is the difference between salt water and freshwater?

Back

Salt water contains a high concentration of dissolved salts, while freshwater has a low concentration of salts.