D4. Weathering Review

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What is weathering?

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Weathering is the process that breaks down rocks into smaller pieces through physical, chemical, or biological means.

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What is mechanical weathering?

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

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What is chemical weathering?

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Chemical weathering involves the breakdown of rocks through chemical reactions, resulting in changes to the rock's composition.

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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, often by wind, water, or ice.

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What is the role of tree roots in weathering?

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Tree roots can cause mechanical weathering by growing into cracks in rocks and expanding, which can lead to the rocks breaking apart.

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What is acid rain?

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Acid rain is precipitation that contains high levels of sulfuric or nitric acids, which can lead to chemical weathering of rocks.

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What is exfoliation?

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Exfoliation is a type of mechanical weathering where layers of rock peel away due to temperature changes.

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How do animals contribute to weathering?

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Animals contribute to mechanical weathering through their burrowing and movement, which can break down soil and rock.

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What is oxidation in the context of weathering?

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Oxidation is a chemical weathering process where oxygen reacts with minerals in rocks, often leading to rusting of iron-rich rocks.

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What is the difference between weathering and erosion?

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Weathering is the breakdown of rocks, while erosion is the movement of those broken materials from one place to another.