Weathering, Erosion & Deposition

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What is weathering?

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The process by which rocks are broken down into smaller pieces by natural forces such as water, wind, and temperature changes.

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What is erosion?

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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 deposition?

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The process by which sediments, soil, and rocks are added to a landform or land mass, often occurring after erosion.

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What is ice wedging?

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A type of mechanical weathering where water seeps into cracks in rocks, freezes, and expands, causing the rock to break apart.

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What role does water play in weathering?

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Water can cause both chemical and physical weathering; it can dissolve minerals and freeze in cracks, leading to rock breakdown.

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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.

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What is sedimentation?

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The process of settling or being deposited as sediment, often occurring in bodies of water where particles accumulate.

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How do plants contribute to weathering?

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Plant roots can grow into cracks in rocks, exerting pressure and causing the rocks to break apart, a process known as root wedging.

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What is the significance of the Grand Canyon in understanding erosion?

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The Grand Canyon illustrates how erosion by water, wind, and geological activity can shape landscapes over millions of years.

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What is chemical weathering?

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The process that involves the chemical alteration of minerals in rocks, often due to reactions with water, acids, or gases.