Erosion.

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Presentation transcript:

Erosion

Definition Erosion is the picking up and carrying away of pieces of weathered rock.

Erosion happens when the crust is exposed to: Water Wind Ice

Water Erosion Moving water can push and carry things along with it. Helped to create the Grand Canyon Causes beaches to disappear in the U.S. Forms deltas Most common type of erosion

Water Erosion

The Grand Canyon

The Grand Canyon

Wind Erosion Wind picks up small particles and moves them. Can deposit sand in large piles called sand dunes. Great factor in the 1930’s Dust Bowl

Wind Erosion

Wind Erosion

Glacial Erosion Glaciers wear away the land as they move over it; ice freezes onto rock and scrapes away the surfaces. How the Great Lakes were formed Least common type of erosion.

Glacial Erosion

Glacial Erosion

Name That Source of Erosion

What type of Erosion?

Glacial!

What type of erosion?

Water!

What type of erosion?

Wind!

What type of erosion?

Glacial