Weathering and Erosion

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What is weathering?

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

Tags

NGSS.MS-ESS2-2

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What is erosion?

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Erosion is the movement of weathered rock and soil from one location to another, often caused by water, wind, or ice.

Tags

NGSS.MS-ESS2-2

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What is deposition?

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Deposition is the laying down of sediment and rock in a new place after being transported by erosion.

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What is mechanical weathering?

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Mechanical weathering is the breaking down of rocks into smaller pieces without changing their chemical composition, often caused by physical forces like ice wedging.

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What is chemical weathering?

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Chemical weathering involves the chemical alteration of minerals in rocks, often leading to the formation of new minerals and soluble substances.

Tags

NGSS.HS-ESS2-5

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What role does ice play in weathering?

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Ice can cause mechanical weathering through a process called freeze-thaw, where water seeps into cracks, freezes, expands, and breaks the rock apart.

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How long did it take for the Grand Canyon to form?

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It took approximately 5 to 6 million years for the Grand Canyon to form.

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What is the difference between weathering and erosion?

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Weathering is the breaking down of rocks, while erosion is the movement of those broken pieces to a new location.

Tags

NGSS.MS-ESS2-2

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What is an example of erosion?

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An example of erosion is a river carrying away soil and rocks from its banks.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

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What is an example of deposition?

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An example of deposition is sand being dropped by wind to form a dune.

Tags

NGSS.MS-ESS2-2