Weathering
- Created by: Anya
- Created on: 08-05-14 17:38
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- Weathering
- Mechanical
- Breakdown of rocks without changing its chemical composition
- Water gets into rocks that have cracks
- Water freezes and expands, puts pressure on the rock
- Water thaws and releases pressure
- Repeated freezing and thawing widens crack
- Water thaws and releases pressure
- Water freezes and expands, puts pressure on the rock
- Chemical
- Changes rocks chemical composition
- Carbon dioxide in rainwater makes it a weak carbonic acid
- Acid reacts with rock that contains calcium carbonate
- Mechanical
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