Weathering, Erosion, and Deposition

Front

What is weathering?

Back

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

Front

What are the two main types of weathering?

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The two main types of weathering are mechanical (physical) weathering and chemical weathering.

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How does mechanical weathering occur?

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Mechanical weathering occurs when physical forces break rocks into smaller pieces without changing their chemical composition.

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What is an example of chemical weathering?

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An example of chemical weathering is the reaction of carbon dioxide with water to form carbonic acid, which can dissolve limestone.

Tags

NGSS.MS-PS1-2

Front

What role do plants play in weathering?

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Plants contribute to weathering through root growth, which can expand cracks in rocks and break them apart.

Front

How does freezing water contribute to weathering?

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Freezing water expands in cracks of rocks, causing the rocks to break apart when the water freezes and thaws.

Front

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 by natural forces such as wind or water.

Tags

NGSS.MS-ESS2-2

Front

What are the main agents of erosion?

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The main agents of erosion are water, wind, ice, and gravity.

Tags

NGSS.MS-ESS2-2

Front

How does water cause erosion in rivers?

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Water in rivers causes erosion by carrying sediment and rocks downstream, which can wear away riverbanks and riverbeds.

Front

What is deposition?

Back

Deposition is the process by which sediments, soil, and rocks are added to a landform or land mass.

Tags

NGSS.MS-ESS2-2