This document summarizes different types of weathering that can shape rocks over time. It describes chemical weathering which breaks down rocks through chemical reactions with carbon dioxide, water and oxygen. It also describes physical weathering, such as abrasion where windblown sand wears away rock surfaces and exfoliation where expanding buried rocks peel off in layers. Specific examples of different types of weathering processes and how they form unique rock shapes are provided.

4. Physical Weathering

9. Exfoliation

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