Water and Its Importance

What percentage of all the water on the Earth is saltwater?

• 97%

• 3%

• 70%

• 30%

Where is most of the freshwater on Earth found?

• Glaciers and ice caps

• Oceans

• Rivers

• Lakes

Tags

NGSS.MS-ESS2-4

Nearly half of our freshwater is used for...

• Creating electricity

• Drinking and cooking

• Irrigation

• Industrial purposes

Tags

NGSS.MS-ESS3-4

What is the process of removing salt from saltwater called?

• Desalination

• Evaporation

• Condensation

• Filtration

Which of the following is NOT a way to conserve freshwater?

• Catching or collecting rainwater

• Using less water

• Recycling gray water

• Desalination

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

• 70%

• 30%

• 50%

• 90%

Tags

NGSS.MS-ESS2-4

What is the main cause of water stress?

• Lack of rainfall

• Overpopulation

• Water pollution

• Climate change

Tags

NGSS.MS-ESS2-4

What is the main purpose of introducing clean water technology in developing countries?

• Improving health

• Decreasing conflict

• Increasing education

• Boosting economy

What is the main source of water for communities in dry areas like Las Vegas?

• Recycled gray water

• Rainwater

• Groundwater

• Desalinated water

Tags

NGSS.MS-ESS3-1

Water is a FINITE resource. What does that mean?

• There is plenty of it and always will be!

• The amount stays the same and never increases or decreases.

• That it can easily go from one phase to another.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1