Geologic Process and History

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What is weathering?

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The process when rocks break into smaller pieces due to exposure to natural elements.

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What is mechanical weathering?

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Process through which rocks are physically broken into smaller pieces.

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What is erosion?

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The process by which natural forces move weathered rock and soil from one place to another.

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What is deposition?

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The process in which sediment is laid down in new locations.

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What is the rock cycle?

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A continuous process where rocks are formed, broken down, and reformed over time.

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What is sea floor spreading?

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The process of creating new oceanic crust at mid-ocean ridges and its movement away from the ridges.

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What is plate tectonics?

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The theory that explains the movement of the Earth's plates and how they interact.

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What is sediment?

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Small, solid pieces of material that come from rocks or living things.

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What is compaction?

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The process by which sediments are pressed together under their own weight.

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What is the difference between weathering and erosion?

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Weathering breaks down rocks, while erosion moves the broken pieces.