Env Science Water Unit Check for Understanding #1

What is it called when smaller streams join together to make a larger river?

• Tributaries
• Topography
• Watershed
• Groundwater

What amount of the earth's surface is covered with water?

• 25%
• 72%
• 97%
• 99%

Roughly 2% of the earth's freshwater is?

• frozen
• water vapor
• polluted water

Why is water the most important substance on the planet?

• It Dilutes
• Drives Climate
• Sustains Life
• It's Pretty

Tags

NGSS.MS-ESS2-4

Check all the boxes that are examples of Surface Water.

• Lakes

• Rivers

• Aquifer

• Streams

Tags

NGSS.MS-ESS2-4

Which type of surface water should you not drink. Also, if you drink it, it would taste salty, and if you had too much of it, you might die.

• Ocean water

• Ground Water

• Lake water

Extra Credit*** What is dissolved oxygen?

• the amount of oxygen on land

• the amount of oxygen dissolved in water

Tags

NGSS.MS-LS2-3

Safe and Healthy water to drink has a pH of 6.0 - 9.0.

• true

• false

Salinity is...

• the amount of salt in the water

• the amount of dirt in the water

What is the energy source for the water cycle?

• the sun
• the earth
• water
• the moon

Tags

NGSS.MS-ESS2-4