Weathering, Erosion, & Deposition

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What is weathering?

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Weathering is the process of breaking down rocks and minerals into smaller pieces through physical, chemical, or biological means.

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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 water, wind, or ice.

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

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What is deposition?

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Deposition is the process where sediments, soil, and rocks are added to a landform or land mass, often occurring at the end of a river or in a body of water.

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NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Front

How do water, wind, ice, and gravity contribute to weathering?

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These natural forces can break down rocks through various processes, such as abrasion, freeze-thaw cycles, and chemical reactions.

Tags

NGSS.MS-ESS2-4

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What happens during physical weathering?

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Physical weathering involves the mechanical breakdown of rocks without changing their chemical composition, such as through freeze-thaw cycles.

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What is chemical weathering?

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Chemical weathering involves the alteration of the chemical composition of rocks, often through reactions with water, acids, or gases.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Front

What role do glaciers play in erosion and deposition?

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Glaciers can erode land by scraping and carrying away rocks, and they deposit materials when they melt, leaving behind sediments.

Tags

NGSS.MS-ESS2-2

Front

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 a different location.

Tags

NGSS.MS-ESS2-2

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Can erosion occur without weathering?

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No, erosion typically follows weathering, as the materials need to be broken down before they can be transported.

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What is an example of biological weathering?

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Biological weathering occurs when living organisms, such as plants, break down rocks through root growth or the production of organic acids.

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NGSS.MS-LS2-4