Stream erosion

What is a floodplain?

• The area near a river that floods when water levels get to be too high.

• The area near a river that looks boring or dull.

• The process of water levels going over a river or stream bank.

• Water gathering on the surface of the Earth because it doesn't seep into the ground.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-2

With a steeper slope, we would expect to see...

• less erosion

• more erosion

• the same amount of erosion

• no erosion at all

Tags

NGSS.MS-ESS2-2

Which of the following statements is not true?

• Water causes more erosion on slopes without plants
• Water flows from higher to lower ground
• Faster water erodes more sediment
• As water slows, smaller particles are deposited first

Tags

NGSS.MS-ESS2-4

When a stream or river starts to slow down, it:

• Picks up more sediment
• Erodes more rapidly
• Deposits fine sediments, but continues carrying larger rocks
• Deposits larger rocks, but continues carrying finer sediment

Tags

NGSS.MS-ESS2-4

The steeper the slope, the ________ the stream.

• Slower
• Broader
• Faster
• Curvier

Which of these are traits of a stream’s floodplain? Select all that apply

• It is nutrient poor

• Is broader and deeper than its channel

• Is where the stream deposits much of its sediment load

• its elevation is usually higher than the river bed

The diagram below shows a portion of a stream. The sand bar formed as a direct result of 

• erosion due to a decrease in stream velocity 
• erosion due to an increase in stream velocity
• deposition due to a decrease in stream velocity
• deposition due to an increase in stream velocity 

Sediments are deposited in a river delta because the 

• velocity of the river decreased
• force of gravity decreased
• volume of the river increases
• gradient of the river increases

Tags

NGSS.MS-ESS2-4

At which location is the greatest amount of sediment most likely being deposited?

• A
• B
• C
• D

Tags

NGSS.MS-ESS2-2

The diagram below shows a section of a meander in a stream. The arrow shows the direction of stream flow. The stream bank on the outside of this meander is steeper than than the stream bank on the inside of this meander because the water on the outside of the meander is moving

• Slower, causing deposition
• Faster, causing deposition
• Slower, causing erosion
• Faster, causing erosion

Tags

NGSS.MS-ESS2-2