Water on Earth

Earth is __________ water.

• 35%

• 50%

• 71%

• 99%

Tags

NGSS.5-ESS2-2

Which of the following statements are true?

• There are equal amounts of salt water and fresh water on Earth.

• There is more salt water on Earth than fresh water.

• There is more fresh water on Earth than salt water.

• None of the above.

Tags

NGSS.5-ESS2-2

Select all statements that are true about salt water.

• 97% of water on Earth is salt water.

• Humans can survive by drinking salt water.

• Salt water cannot be used for basic needs.

• Desalination is very expensive.

Tags

NGSS.5-ESS2-2

What is desalination?

• What happens when rain water soaks into the ground.

• Removing salt and minerals from seawater to get fresh water.

• Unfreezing polar ice caps to get fresh water

• Water pollution

___________ of water on Earth is usable for humans.

• 70%

• 6%

• 25%

• 0.5%

Tags

NGSS.MS-ESS2-4

Where can fresh water be found?

• Surface water

• Ground water

• Water vapor

• All of the above

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

Which of the following is an example of surface water?

• Water vapor

• Lake

• Aquifer

• All of the above

Tags

NGSS.MS-ESS2-4

What is an aquifer?

• An area above ground that contains a pool of water.

• A fountain that spurts water for people to drink and bathe with.

• An area underground where water is stored between and inside rocks.

• A cloud containing fresh rain water.

Tags

NGSS.MS-ESS3-1

How are aquifers replenished?

• People pour buckets of water into it.

• A garden hose is used to refill it.

• Water comes out of the earth's crust.

• Rain water soaks into the ground.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

How do humans negatively impact water?

• Littering

• Runoff of oils, fertilizer, and animal waste

• Pollution

• All of the above

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4