Erosion

Weathering and Erosion

Wednesday 9/16

Today we are going to begin with a brief review of what was discussed yesterday.

Here we go!

Multiple Choice

The natural wearing down of objects by elements in the environment is known as...

• Weathering

• Erosion

• Deposition

Multiple Choice

True or False: The terms weathering and erosion mean the same thing and can be used interchangeably.

Multiple Choice

The process of transporting weathered material is known as...

• Weathering

• Erosion

• Deposition

Multiple Choice

The deposit of sediment to a new location is known as...

• Weathering

• Deposition

• Erosion

Open Ended

Explain how this picture shows evidence of weathering, erosion, and/or deposition. (Please find evidence for and support at least one of the above options.)

Agents of Erosion

"Agents of Erosion" refer to methods by which weathered material and sediment are moved from one place to another.

Multiple Select

Which of the following are agents of erosion? (Select all that apply.)

• Wind

• Water

• Ice

• Gravity

Multiple Choice

True or False: Along with weathering, erosion and deposition are continually reshaping the Earth's surface.

Fill in the Blanks

The physical breakdown of an object into smaller components without changing its chemical composition is known as... (Mechanical weathering or chemical weathering? Write your answer below.)

Fill in the Blanks

The breakdown of an object into particles with a different mineral composition than the original object. (Mechanical weathering or chemical weathering? Write your answer below.)

Multiple Select

Frost Wedging occurs when rock breaks due to water continually freezing and thawing within cracks in the rock. Is frost wedging an example of mechanical or chemical weathering?

• Chemical weathering

• mechanical weathering

Multiple Choice

Oxidation occurs when water, air, and certain metals react. Rust for example is a reaction between iron, water, and air. Is oxidation an example of chemical or mechanical weathering?

• Chemical weathering

• Mechanical Weathering