Rocks may be created in layers, but those layers do not always stay in the form or location where they were created. Find out about the forces that can change rock layers that help tell the story of the Earth in that location.

Concepts

geologic history, rock layers

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Additional Tags

principle of original horizontality, superposition, sediment layers and crossbedding

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Classroom Considerations

• Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)