Weathering, Erosion & Deposition

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What is physical weathering?

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Physical weathering is the mechanical breaking down of rocks into smaller pieces without changing their chemical composition.

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What is erosion?

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Erosion is the process by which soil and rock are removed from the Earth's surface by natural processes such as wind or water flow.

Tags

NGSS.MS-ESS2-2

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What is deposition?

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

Tags

NGSS.MS-ESS2-2

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How does water contribute to physical weathering?

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Water contributes to physical weathering by gradually wearing down and smoothing rocks over time through processes like freeze-thaw cycles.

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What role do rivers play in erosion?

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Rivers can carry away sediments and rocks, effectively eroding the landscape as they flow.

Tags

NGSS.MS-ESS2-2

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What is the difference between erosion and deposition?

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Erosion involves the removal of materials from one location, while deposition involves the accumulation of those materials in another location.

Tags

NGSS.MS-ESS2-2

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How does wind cause erosion?

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Wind causes erosion by lifting and transporting sand and other particles from one location to another.

Tags

NGSS.MS-ESS2-2

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What is an example of chemical weathering?

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An example of chemical weathering is the reaction of acid rain with limestone, which dissolves the rock.

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What factors influence the rate of weathering?

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Factors influencing the rate of weathering include climate, rock type, and the presence of vegetation.

Tags

NGSS.MS-ESS2-4

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What is the significance of beaches in the context of deposition?

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Beaches are formed by the deposition of sand and sediments carried by waves, illustrating the process of deposition in coastal environments.