Lesson of Weathering and Erosion

Read the slides carefully, and take the quiz.

Multiple Choice

What is erosion?

• Breaking down of rock

• Chemical weathering of rock

• Movement of broken rock

Multiple Choice

What is weathering?

• The breaking down of rock matter into smaller pieces.

• The movement of rock sediment from one place to another.

• When the sun shines, and rain falls to the earth at the same time.

Multiple Choice

What will likely happen next?

• The house will not move.

• The house will fall into the water with more erosion.

• The house will be rebuilt in the same place.

Multiple Choice

What is one way to help prevent erosion?

• Plant trees, shrubs, grass, etc.

• Cover an eroded area with cement.

• Have a sprinkler system installed in the eroded area.

Multiple Choice

The Grand Canyon was formed by millions years of constant:

• Repeated exposure to water

• Weathering from the wind

• Temperature Changes (Hot/Cold)

• All of the above

Multiple Choice

How do plants like trees and grasses help prevent erosion?

• The roots grow underground a break apart the rock.

• Their roots grab onto the soil and hold it in place.

• The leaves break down the topsoil.