Freshwater vs. Saltwater

70% of earth's surface is water.

• True

• False

Tags

NGSS.MS-ESS2-4

Saltwater is suitable for drinking.

• True

• False

What is the average percent of freshwater on Earth?

• 80%

• 50%

• 25%

• 3%

Freshwater can be found in ________________.

• lakes

• ponds

• streams

• underground

• all of the above

Tags

NGSS.MS-ESS2-4

What percent of Earth's waters are salt water?

• 5%

• 97%

• 3%

• 25%

1 in 10 people on Earth do not have access to fresh water.

• True

• False

All of Earth's oceans are connected to each other.

• True

• False

Tags

NGSS.5-ESS2-1

NGSS.5-ESS2-2

There is more fresh water in rivers and streams than underground.

• True

• False

Tags

NGSS.MS-ESS3-1

What do you call the area where the river meets the sea and there is a mix of fresh and salt water?

• estuary

• mouth

• stream

• glacier

Tags

NGSS.MS-ESS2-4

To be considered a saltwater source, the concentration of salt needs to be at least ________ parts per thousand.

• 4

• 25

• 1

• 8