Earth's Oceans, Surface Water, and Groundwater

The path that a stream follows.

• watershed

• channel

• divide

• tributary

What percentage of the Earth’s surface is covered with water?

• 71%

• 47%

• 2%

• 97%

Tags

NGSS.MS-ESS2-4

What percentage of surface water is fresh water?

• 97%

• 3%

• 54%

• 10%

Tags

NGSS.MS-ESS2-4

The area of land that is drained by a river system.

• divide

• tributary

• divide

• watershed

Tags

NGSS.MS-ESS2-4

A smaller stream that feeds into a river.

• watershed

• channel

• divide

• tributary

2% of the fresh water on Earth is unavailable, why?

• The water is polluted in lakes and rivers.

• The water is trapped in glaciers and ice caps.

• The water is trapped underground. 

• None of the above

Which one of the following is NOT a source of fresh water?

• groundwater

• rivers

• oceans

• lakes

Tags

NGSS.MS-ESS2-4

What percentage of surface water is salt water?

• 71%

• 45%

• 97%

• 3%

Tags

NGSS.MS-ESS2-4

Which of the following is an example of salt water?

• Mississippi River

• Pacific Ocean

• Lake Huron

• Lake Erie

What percentage of surface water is fresh water?

• 71%

• 10%

• 3%

• 97%

Tags

NGSS.MS-ESS2-4