SS Erosion 2025

Where is the Grand Canyon?

• Canada
• the western United States
• Europe
• South Africa

What made the Grand Canyon?

• a meteor
• tectonic plates
• a river
• a glacier

Rock breaking down into small pieces is called weathering.

• True
• False

Erosion is caused by _______.

• gravity, wind, trees, and sand
• gravity, wind, sediment, and snow
• gravity, rain, ice, and hail
• gravity, wind, ice, and water

Which is not an example of erosion cause by gravity?

• landslides
• mudslides
• dust storms
• rock falls

Wind erosion causes problems for _________.

• farmers
• coastal communities
• glaciers
• both A and B

Glaciers can move.

• True
• False

What are glaciers?

• giant dust storms
• mountains of rock
• rivers of ice
• deep valleys

In the last paragraph, sandpaper is usd to describe _____.

• glaciers
• sediment
• abrasion
• gravity

How long did it take the Colorado River to carve the Grand Canyon?

• hundreds of years
• thousands of years
• millions of years
• billions of years