Exploring Stream Velocity and Sediment Deposition

The video tutorial explains stream transport and how streams carry sediments. It discusses the impact of stream velocity on sediment size and deposition, and demonstrates how to use a reference chart to calculate the minimum stream velocity needed to transport various sediment types. The tutorial includes examples and calculations to illustrate these concepts.

What determines the type of sediment a stream can carry?

• The width of the stream

• The depth of the stream

• The speed of the stream

• The temperature of the water

How do sediments travel in a stream?

• Sediments do not move in a stream

• Sediments travel slower than the water

• Sediments travel faster than the water

• All sediments travel at the same speed as the water

What happens to larger sediment particles when a stream slows down?

• They are carried further downstream

• They are deposited first

• They dissolve in the water

• They break into smaller particles

Which sediment size is represented by a diameter of 25.6 centimeters or greater?

• Clay

• Boulders

• Cobbles

• Pebbles

What is the minimum stream velocity needed to carry a 25.6 cm boulder?

• 1200 cm/s

• 100 cm/s

• 10 cm/s

• 0.3 cm/s

What is the minimum stream velocity needed to carry the smallest sand grain (0.006 cm)?

• 0.5 cm/s

• 0.35 cm/s

• 0.4 cm/s

• 0.3 cm/s

At a stream velocity of 100 cm/s, which sediments can be transported?

• Only boulders

• Pebbles, sand, silt, and clay

• Only clay

• Only sand and silt

What is the minimum stream velocity needed to carry pebbles?

• 0.3 cm/s

• 100 cm/s

• 10 cm/s

• 1200 cm/s

What is the minimum stream velocity needed to carry clay particles?

• 0.015 cm/s

• 0.03 cm/s

• 0.02 cm/s

• 0.01 cm/s

Tags

CCSS.7.EE.B.4B

When a stream slows down to 5 cm/s, which particle will settle first?

• Silt

• Pebbles

• Sand

• Clay