Weathering and Erosion

Gerardo is working on his backyard. He has a large pile of dirt to help with the landscaping. He covers the dirt with a tarp. Why should the dirt be covered?

• to create a level place

• to help the dirt settle into a solid mass

• to protect the dirt from freezing

• to prevent rain from carrying the dirt downhill

Which of the following is NOT an example of erosion?

• wind blowing sand

• rain falling onto the beach

• sand castles becoming smaller

• ocean waves moving sand back and forth

Process in which sediment is deposited in a new location

• Erosion

• Deposition

• Withdraw

• Sedimentary

Breaking down rocks when water freezes in cracks, expanding, and making the cracks bigger

• Organic Activity

• Ice Wedging / Freeze-Thaw

• Erosion

• Abrasion

The process where rocks are worn away or broken down into smaller pieces by water, wind or plants is.......

• erosion

• weathering

• deposition

• water erosion

The process of moving Earth’s materials from one place to another by water, wind, or ice is.........

• Mechanical Weathering

• Erosion

• Deposition

• Weathering

How does freezing water cause the weathering of rocks? The freezing water—

• keeps the rocks in place.

• makes the rocks last longer.

• expands cracks and breaks rocks.

• causes rocks to fall in landslides.

Weathering and erosion are the same thing.

• True
• False

Which if the following is NOT a form of weathering?

• Plant roots growing through rocks.

• Ice grinding on rocks.

• Water moving particles down stream

• Rocks rubbing against each other.

Over long periods of time, deposition may change the Earth’s surface by _____.

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