Review

A teacher showed her students the watershed model. She asked them to use the model to explain what a watershed is. This is what they said:

Annmarie: Watersheds are places where there is a lot of rain.

Brandi: I think a watershed is a building that stores water for humans.

Camille: I think a watershed is a place where water flows to one area.

Dory: I think a watershed is a place that holds underground drinking water.

Who had the best definition of a watershed?

• Annmarie

• Brandi

• Camille

• Dory

Tags

NGSS.MS-ESS2-4

How can high turbidity impact an aquatic ecosystem?

• A. It increases the salinity levels in the water.

• B. It tells us there are harmful chemicals in the water.

• C. It reduces sunlight in the water.

• D. It negatively affects plant growth.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Why is it important to test the pH of water?

• Higher pH levels increase the turbidity of the water.

• Lower pH levels indicate the presence of harmful bacteria.

• Extremely high or low pH levels can cause the death of aquatic organisms.

• pH has no impact on the health of aquatic ecosystems.

Tags

NGSS.MS-LS1-5

If macroinvertebrates no longer appear in samples taken from a water source, what could this indicate?

• The water source is polluted.

• The aquatic plants in the water are healthy.

• The pH of the water is in a healthy range.

• The turbidity of the water has not changed.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Identify if the following example is an abiotic (A) or biotic (B) factor of a watershed.

• B

• A

Tags

NGSS.MS-LS2-1

Identify if the following example is an abiotic (A) or biotic (B) factor of a watershed.

• A

• B

Tags

NGSS.MS-LS2-4

Identify if the following example is an abiotic (A) or biotic (B) factor of a watershed

• B

• A

Identify if the following example is an abiotic (A) or biotic (B) factor of a watershed.

• A

• B

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-4

In which watershed is Prince William County located?

• Atlantic Ocean

• Chesapeake Bay

• Mississippi River

• North Carolina Sounds

Divides are areas of high elevation. How do they relate to watersheds?

• They cause water to accumulate at the top of ridgelines.

• They create valleys for water to flow through.

• They act as boundaries that separate watersheds.

• They have no impact on the flow of water in watersheds.

Tags

NGSS.MS-ESS2-4