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Weathering and Erosion Overview

Science, Grade 6

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Table Of Contents: Weathering and Erosion Overview

1. Weathering and Erosion
Forces of weathering and erosion are constantly reshaping the Earth’s surface. Weathering is a group of natural processes that break rock into smaller pieces over time. Erosion occurs when rock and soil are transported.
2. Mechanical and Chemical Weathering
The two types of weathering are mechanical and chemical. Mechanical weathering is the physical decomposition of rocks. Chemical weathering is the decomposition of rocks by chemical reactions.
3. How Is Rock Eroded?
Rock can be eroded by many forces such as blowing wind, running water, ocean waves, flowing ice and gravity. These forces all contribute to sculpting the Earth’s landscape.
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