The measure of the amount of salt in water.

• Freshwater

• Saltwater

• Salinity

• Saltiness

The surface of the earth is covered in approximately how much water?

• 3 %

• 50%

• 70-75%

• 97%

Approximately how much of all the water on earth is saltwater?

• 3%

• 60%

• 70%

• 97%

Tags

NGSS.MS-ESS2-4

Approximately how much of all the water on the earth is frozen?

• 1%

• 2%

• 65%

• 97%

Tags

NGSS.MS-ESS2-4

Approximately how much of all the water on earth is available to humans for consumption?

• 1% or less

• 3%

• 70%

• 97%

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

MOST freshwater is located where?

• Seas and Oceans

• Oceans and Glaciers

• Glaciers and Ice Caps

• Groundwater, Lakes, and Rivers

If there is high evaporation in the sea, the salinity of the water will increase or decrease?

• Decrease

• Increase

• Stay the same

• Both

If there is lots of precipitation in a salty water lake, the salinity of the water will increase or decrease?

• Decrease

• Increase

• Stay the same

• Both

If lots of sea water becomes frozen what will happen to the remaining water left behind?

• It will become less salty

• It will become more salty

• It will remain just as salty as ever.

• I thought salty meant something else.

Which of the following is not a freshwater source?

• Atmosphere

• Lake

• River

• Sea

Tags

NGSS.MS-ESS2-4