Fresh Water

Over 70 percent of the Earth's surface is covered in water. So why is water considered such a precious resource?

• The greenhouse effect is causing most of the world's freshwater to be trapped in the atmosphere

• Only a small fraction of the Earth's water is freshwater available for drinking and irrigation

• Each year, more freshwater is being trapped in icecaps located at the North and South Poles

• Global warming caused by greenhouse gas emissions will likely cause Earth's oceans to evaporate

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

We cannot drink water from oceans/seas because it is too _______________

• scarce

• salty

• cold

• plentiful

Only about 3% of Earth's water is fresh water. Of this 3% most of it cannot be used by humans because it is found in _________.

• lakes

• the atmosphere

• glaciers

• the oceans

Tags

NGSS.MS-ESS2-4

All areas of our planet have equal access to fresh water.

• True

• False

Tags

NGSS.MS-ESS3-1

Which one is NOT a source of fresh water

• water vapor and ice

• ground water

• lakes and rivers

• oceans and seas

Tags

NGSS.MS-ESS3-1

Over 60% of fresh water on the earth's surface is

• Ice

• Rivers

• oceans

Tags

NGSS.MS-ESS2-4

The streams and smaller rivers that feed into a main river are called

• the divide

• reservoir

• tributaries

When the pores in the ground fill (saturate) with water, it is called the

• soggy bottom

• saturated zone

• unsaturated zone

Tags

NGSS.MS-ESS2-4

What percent of Earth's fresh water is within reach?

• 1%

• 10%

• We are out of fresh water

• 100%

Tags

NGSS.MS-ESS2-4

What is the primary source of fresh water on Earth?

• Glaciers and ice caps

• Oceans

• Deserts

• Volcanoes

Tags

NGSS.MS-ESS2-4