Weathering, Erosion, and Deposition Review

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What is weathering?

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The process of breaking down rocks into smaller pieces through physical or chemical means.

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What is erosion?

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The movement of weathered rock and soil from one location to another, often by water, wind, or ice.

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What is deposition?

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The process by which sediment is laid down in new locations, forming landforms such as deltas and beaches.

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What is physical weathering?

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The process that breaks rocks into smaller pieces without changing their chemical composition, often due to temperature changes, freeze-thaw cycles, or abrasion.

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What is chemical weathering?

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The process that alters the chemical composition of rocks, often through reactions with water, acids, or gases.

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What is a soil profile?

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A vertical section of soil that shows the different layers, or horizons, of soil.

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What are soil horizons?

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Layers of soil that differ in color, texture, and composition, typically including topsoil, subsoil, and parent material.

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What is a delta?

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A landform created by the deposition of sediment at the mouth of a river where it meets a body of water.

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What is a drumlin?

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A tear-drop-shaped hill formed by glacial action, consisting of till deposited by ice.

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What is an esker?

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A long, winding ridge of sediment deposited by a meltwater stream flowing beneath a glacier.