Weathering and Erosion

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What is physical weathering?

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Physical weathering is the process of breaking down rocks and minerals into smaller pieces without changing their chemical composition. It is caused by factors such as temperature changes, ice wedging, and abrasion.

Tags

NGSS.MS-ESS2-2

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What is chemical weathering?

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Chemical weathering involves changes in the minerals of rocks, breaking down the bonds that hold them together, often due to reactions with water, acids, or oxygen.

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NGSS.MS-ESS2-4

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What is erosion?

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Erosion is the process by which soil, rock, and sediments are removed from one location and transported to another, often by wind, water, or ice.

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NGSS.MS-ESS2-2

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What is deposition?

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Deposition is the process in which sediments, soil, and rocks are added to a landform, often occurring in areas where the transporting medium loses energy.

Tags

NGSS.MS-ESS2-2

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What role does gravity play in erosion?

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Gravity is a major force that causes landslides, mud flows, and other forms of mass wasting, moving materials down slopes.

Tags

NGSS.MS-ESS2-2

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What is abrasion in the context of weathering?

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Abrasion is the process of wearing down rocks and minerals through friction and impact, often caused by wind or water carrying particles.

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What is ice wedging?

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Ice wedging is a type of physical weathering where water seeps into cracks in rocks, freezes, expands, and eventually causes the rock to break apart.

Tags

NGSS.MS-ESS2-2

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What are some examples of chemical weathering?

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Examples of chemical weathering include rusting of iron (oxidation), dissolution of limestone by acidic rain, and hydrolysis of feldspar to clay.

Tags

NGSS.MS-ESS2-2

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What is the difference between weathering and erosion?

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Weathering is the breakdown of rocks and minerals at their original location, while erosion involves the movement of those materials to a different location.

Tags

NGSS.MS-ESS2-2

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What are some factors that influence weathering?

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Factors influencing weathering include climate (temperature and moisture), rock type, and the presence of vegetation.

Tags

NGSS.MS-ESS2-4