Erosion & Running Water

Over long periods of time, deposition may change the Earth’s surface by  _____ such as dunes, delta's and oxbow lakes.

• forming new land features.
• breaking down large rocks into smaller ones.
• washing away beaches.
• moving topsoil.

What is the process that picks up and moves weathered sediments?

• Deposition
• Landslide
• Weathering
• Erosion

What causes the greatest erosional effect on our beaches?

• Waves
• Gravity
• Glaciers

What process formed the Grand Canyon over many years?

• Water
• Deposition
• Glacier
• Wind

_________________occurs when the velocity of the water or wind slows.

• Weathering
• Erosion
• Wind
• Deposition

Erosion is most likely at which locations?

• A, D
• B, C
• C, A

Deposition is most likely to occur at 

• The river source
• Where the river is the gentlest
• Where the river meets the ocean
• Where the river is the steepest

Which side of the image would show the outside of the river where there is erosion?

• x, because there is greater deposition
• y, because its the steepest 

Use page 6 of the ESRT - What is the velocity needed to move a 1.0 cm pebble?

• 150 cm/s
• 200 cm/s
• 20 cm/s
• 50 cm/s

As stream velocity increases, the size of sediment carried by the stream

• stays the same
• decreases
• increases