Weathering and Erosion Flashcard

Front

What is weathering?

Back

The process of breaking down rocks, soil, and other materials on the Earth's surface through exposure to the elements such as wind, water, and temperature changes.

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What is erosion?

Back

The process of moving rocks, soil, and other materials on the Earth's surface through exposure to the elements such as wind, water, and temperature changes.

Front

What causes V-shaped valleys?

Back

Rivers cause V-shaped valleys through the process of erosion.

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What causes U-shaped valleys?

Back

U-shaped valleys are primarily caused by the movement of glaciers.

Front

What is physical weathering?

Back

Physical weathering is the process of breaking down rocks into smaller pieces without changing their chemical composition.

Front

What is freeze-thaw action?

Back

Freeze-thaw action is a type of physical weathering where water seeps into cracks in rocks, freezes, expands, and eventually breaks the rock apart.

Front

How do ocean waves contribute to erosion?

Back

Ocean waves crash against the shore, wearing away rocks and soil over time.

Front

What role does wind play in weathering?

Back

Wind can carry small particles that wear down rocks and other surfaces through abrasion.

Front

What is the difference between weathering and erosion?

Back

Weathering is the breaking down of rocks, while erosion is the movement of those broken materials.

Front

What is an example of chemical weathering?

Back

An example of chemical weathering is the reaction of acid rain with limestone, which dissolves the rock.