Weathering and Erosion Review

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What is weathering?

Back

Weathering is the process of breaking down rocks and minerals into smaller pieces by natural forces such as wind, water, ice, and sunlight.

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What is erosion?

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Erosion is the process by which soil and rock are removed from one location and transported to another by natural forces like water, wind, or ice.

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What is deposition?

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Deposition is the process where materials transported by erosion are dropped or settled in a new location, forming new landforms.

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What are the four main factors that cause weathering and erosion?

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The four main factors are wind, water, ice, and gravity.

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How does water contribute to weathering?

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Water can enter cracks in rocks, freeze, and expand, causing the rocks to break apart, a process known as freeze-thaw weathering.

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What is physical weathering?

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Physical weathering is the breaking down of rocks into smaller pieces without changing their chemical composition, often through processes like freezing and thawing.

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What is chemical weathering?

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Chemical weathering involves the chemical alteration of minerals in rocks, often due to reactions with water, acids, or gases.

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What role does sunlight play in weathering?

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Sunlight can cause rocks to heat up and expand during the day and cool down at night, leading to stress and eventual cracking.

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What is the difference between weathering and erosion?

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Weathering breaks down rocks in place, while erosion involves the movement of those broken materials to new locations.

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What is an example of erosion caused by wind?

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An example of wind erosion is the formation of sand dunes in deserts, where wind carries away sand particles.