Earth's Water Savvas

What evidence supports the importance of the ocean in the water cycle?

• The ocean represents about 97% of Earth's water.

• The ocean provides most of the freshwater that people use.

• The ocean is saline, so it contributes dissolved salts to the water cycle.

• The ocean is not important to the water cycle because it is saltwater.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-1

Which two statements about Earth’s freshwater are supported by the graphs?

• Most freshwater is in glaciers and ice caps.

• Aquifers are the largest source of surface water.

• Only a very small amount of available water is freshwater.

• Saltwater represents only a small portion of available water.

Tags

NGSS.MS-ESS3-1

Based on the circle graphs, which is the largest source of surface drinking water?

• lakes

• oceans

• aquifers

• wetlands

Tags

NGSS.MS-ESS2-4

What provides the energy to power the water cycle?

• the sun

• gravity

• the wind

• air pressure

Tags

NGSS.MS-ESS2-4

Choose the answer in which the steps of the water cycle are in the correct order.

• Evaporation, runoff, condensation, and precipitation

• Runoff, evaporation, condensation, and precipitation

• Precipitation, runoff, condensation, and evaporation

• Runoff, precipitation, condensation, and evaporation

Tags

NGSS.MS-ESS2-4

Step 1: Place some boiling water into the bottom of a jar.

Step 2: Place the lid upside down on top of the jar. Add several ice cubes to the lid.

Step 3: Remove the lid, spray some hairspray into the jar, and replace the lid.

Step 4: After 20 seconds, make a drawing of your observations.

Tyler’s observations are shown in the drawing.

Which is the best label for the process labeled 2 in the drawing?

• collection

• evaporation

• precipitation

• condensation

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-1

Why does Tyler need to use boiling water in the investigation?

• The heat causes precipitation to form.

• The heat causes the water to turn into vapor.

• The heat causes the water droplets to condense.

• The heat helps to collect the water in a reservoir.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which is the correct title for this diagram?

• Glacier

• Aquifer

• Permafrost

• Saltwater

Tags

NGSS.MS-ESS2-4

Which two solutions address the lack of human access to clean water?

• reducing usage

• melting glaciers

• digging aquifers

• digging canals in wetlands

Tags

NGSS.MS-ESS3-1

NGSS.MS-ESS3-4

A city has limited access to freshwater resources, so the city builds this structure. How does this structure help solve the problem of limited freshwater?

• It cleans polluted water.

• It collects and stores water.

• It accesses aquifers underground.

• It promotes evaporation for the water cycle.

Tags

NGSS.MS-ESS2-4