Chapter 8: Weathering and Erosion - Mrs. Weisenbach's ...

Lesson 1 • Weathering 337 Physical Weathering Physical weathering is the breaking of rock into smaller pieces without changing its mineral composition. Processes of physical weathering include frost wedging and the work of plants and animals. These are described below. Frost Wedging Frost wedging occurs when water freezes, expands, and ................
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