Earth Water

Why is a small amount of Earth's water available for human use?

• 97% is saltwater and 3% is freshwater

• 70% is saltwater and0.5% is fresh water

• 30% is saltwater and 2% is freshwater

• 97% is freshwater and 3% is saltwater.

Tags

NGSS.MS-ESS3-1

NGSS.MS-ESS3-4

Water is made up of what two elements?

• Hydrogen and Oxygen

• Carbon Dioxide and Iron

• Oxygen and Argon

• Hydrogen and Helium

Tags

NGSS.MS-PS1-1

How much of the water on earth is available for human use?

• 0.5%

• 1%

• 70%

• 97%

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Paul has a sample of water. What question could you ask him to determine if its salty or fresh water?

• Does the sample contain sodium chloride?

• Is the sample frozen?

• Is the sample heavy?

• Is the sample polluted?

Which is in the correct order from largest to smallest?

• ocean, glaciers, rivers

• glaciers, rivers, oceans

• oceans, rivers, swamps

• lakes, oceans, rivers

Tags

NGSS.MS-ESS2-4

Only 3% of Earth's water is fresh. Why is 2% of that not readily available?

• its frozen

• its polluted

• its too salty

• its in aquifers

How much of the world’s water is frozen and therefore unusable?

• 2%

• 10%

• 25%

• 0%

Tags

NGSS.MS-ESS2-4

Does water cover more or less than 50% of the Earth’s surface?

• more

• less

Tags

NGSS.MS-ESS2-4

Which cup of water represents the amount of water covering the earth compared to the amount of land?

• Most of the time

• Sometimes

• Rarely

Tags

NGSS.MS-ESS2-4

The solid state of water is known as what?

• Ice

• Vapor

• Ocean

• Particles

Tags

NGSS.MS-PS1-4