Day 4: Weathering and Erosion

What is weathering?

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Answer explanation

Weathering is the process where rock is dissolved, worn away, or broken down into small pieces.

The movement of sediment from one place to another is the process of _______.

What are the four main causes of weathering?

• The four main causes of weathering are water, wind, ice and plant growth.

• The four main causes of weathering are temperature, pressure, humidity, and wind.
• The four main causes of weathering are erosion, deposition, sedimentation, and compaction.
• The four main causes of weathering are storms, water, trees, mountains

The dropping of sediment by wind, water, ice, or gravity is known as __________.

What happens to a rock that has rainwater entering its cracks and then freezing?

• The ice will cause cracks and eventually spilt the rock.

• nothing will happen to the rock

• The rock will get bigger.

What is sediment?

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Answer explanation

Sediment is crushed rock and rubble.

True or False: Erosion always takes a very long time to happen.

• True

• False

When wind dies down or stops blowing _________ happens.

What process involves the breaking down of rocks over time due to wind?

• weathering

• erosion

• deposition

What process is taking place when moving water is carrying away small pieces of rock?

• Weathering

• Erosion

• Deposition