Which tools are best for measuring the length of the model river?

• Balance scale and gram cubes

• Centimeter ruler and string

• Meterstick and thick rope

• Spring scale and notebook

As fast-moving water begins to slow down, gravel will settle out and go to the bottom of the stream first. As the flow of the water continues to decrease, which type of particle will settle to the bottom next?

• Clay

• Humus

• Sand

• Silt

On a hillside, which type of soil would be least able to reduce water runoff during a sudden heavy rainstorm?

• Gravel

• Humus

• Sand

• Clay

Tags

NGSS.MS-ESS2-4

It's raining. The rain is hard and fast. On a hillside, which soil best protects the soil from runoff?

• Clay

• Gravel

• Humus

• Sand

Where is the water moving more slowly?

• 1

• 2 and 3

• 1 and 4

• 4

Tags

NGSS.MS-ESS2-4

Which of these happens when water slows down in a river?

• Sediment builds up

• Riverbanks become steeper

• Riverbeds become deeper

• More sediment gets carried away

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Where in the drawing is erosion happening?

• 1 and 2

• 2 and 3

• 3 and 4

• 4 and 1

Tags

NGSS.MS-ESS2-2

Which of these materials is least likely to be the soil material that makes up a delta?

• Clay

• Gravel

• Humus

• Sand

Which best describes a tributary?

• A drainage basin or watershed

• A large stream or river

• A ridge along a mountain range

• A smaller stream that flows into a river

Tags

NGSS.MS-ESS2-4

Which two of these describe a fast-moving stream?

• The water carries a bigger load like gravel, pebbles, or boulders.

• Large amounts of soil are carried downstream.

• The river bed is wide with big bends and curves.

• Very little erosion takes place.