Water Cycle and Freshwater

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

Which part of the ocean would have the lowest salinity?

• in areas near melting glaciers

• in areas near the equator

• in areas with the highest temperatures

• in areas where there is little rainfall

Where is most of the Earth's freshwater located?

• in aquifers
• in rivers and streams
• in the ocean
• in icecaps and glaciers

Tags

NGSS.MS-ESS2-4

Which of the following happens when the polar ice caps melt?

• headlands become valleys
• tectonic plates move
• sea levels fall
• sea levels rise

Aquifers are sources of

• freshwater, which is used for drinking, bathing, and watering crops.

• saltwater, which is pushed through turbines to make energy.

• oil, which is drilled from the aquifer and used to power homes.

• silica, which is used to make glass and paper products.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

Why are oceans a major part of the water cycle?

• because they are large bodies of salt water that easily evaporate salt into the air

• because they are large bodies of salt water that fresh water can be evaporated from

• because the salt water condenses easily to become a gas in the air

• because the salt water runs off onto land to fill lakes and streams

Tags

NGSS.MS-ESS2-4

Tanya makes a table with the weather conditions at a body of water for five days. What day did the body of water most likely evaporate the fastest?

• Friday

• Thursday

• Tuesday

• Monday

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-5

Where does most drinking water come from?

• reservoirs

• lakes

• groundwater

• oceans

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

Which pie chart shows the relative proportions of Earth's water in each location?

• 
• 
• 
• 

Tags

NGSS.MS-ESS2-4

The graph shows the distribution of water on Earth's surface. What can be concluded from this image?

• Most of the freshwater on Earth is found in groundwater.

• Most of the the water available on Earth is drinkable.

• Most of the water available on earth is not drinkable

• Most of the freshwater on Earth is found in oceans.

Tags

NGSS.MS-ESS2-4