Salt and Freshwater

What percentage of ALL WATER on Earth is saltwater?

• 20%

• 3%

• 97%

• 84%

What percentage of the Earth’s sea water is salt?

• 1.5%

• 3.5%

• 25%

• 50%

What is one way that salt is added to the ocean?

• By rivers carrying sediment to the ocean

• By earthquakes

• By rainfall

• By the change of the seasons

How is salt removed from the oceans?

• By rivers adding sediment

• By earthquakes

• By sea creatures making shells

• By hydrothermal vents

A coastal area where freshwater from a river mixes with saltwater.

• riffle

• pool

• estuary

• wetland

Tags

NGSS.MS-LS2-3

A partially enclosed body of water where freshwater meets salty water; where organisms reproduce is called _____.

• swamp

• canal

• estuary

• wetland

What percentage of freshwater is available for us to use?

• 1%

• 2%

• 3%

• 10%

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

What does a hydrothermal vent add to the oceans?

• Freshwater

• Minerals (Salts)

• Sea Creatures

Tags

NGSS.MS-ESS3-1

NGSS.MS-LS2-3

approximately what percent of earth water is salt water

• 87

• 79

• 97

• 9

Tags

NGSS.MS-ESS2-4

Most of Earth's surface is covered with water. Only 2.5% of Earth's global water is freshwater. Of all the freshwater on Earth, 78% is frozen. Where is most of Earth's water found?

• glaciers

• lakes

• oceans

• rivers

Tags

NGSS.MS-ESS2-4