Factors affecting stream velocity

What determines a river's ability to erode sediment?

• Discharge
• Velocity
• Gradient (Slope)
• All the Above

What is the largest type of sediment that can be carried by a river flowing at 3 cm/s?

• Silt
• Sand
• Pebbles
• Clay

What types of sediments would be on the stream bed (not eroded) of a river flowing at 200 cm/s?

• Boulders only
• Cobbles, pebbles, sand, silt, and clay

• Cobbles only

• Nothing

If a stream were flowing 100 cm/s and slowed to 10 cm/s, what type of sediment would it no longer carry?

• Clay
• Silt
• Sand
• Pebbles

Tags

NGSS.MS-PS2-2

What type of sediment has a diameter of 0.003 cm?

• Sand
• Silt
• Clay
• Pebbles

For a stream to carry a sediment the size of 20 cm, how fast must it's velocity be?

• 200 cm/s
• 100 cm/s
• 50 cm/s
• 500 cm/s

What is the largest sediment size that a stream flowing at 10 cm/s can carry?

• 1.0 cm
• 0.2 cm
• 0.1 cm
• 0.01 cm

A stream flowing at 0.3 cm/s can erode what type of sediment?

• Pebbles, sand, silt, and clay
• Sand, silt, and clay
• Silt and clay
• Clay Only

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

• less erosion

• more erosion

• the same amount of erosion

• no erosion at all

Solution, suspension, and bed load are the three components of...

• stream load

• gravity

• erosion

• water

Tags

NGSS.MS-ESS2-4