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 Form 3 Geography External Land Forming Processes Online Lessons

Slaking or rain water action as a process of mechanical weathering

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Answer Text:
Slaking/Rain Water Action as a process of mechanical weathering
- Breaking up of sedimentary rocks due to alternate wetting and drying.
- Heavy rain has a powerful shattering effect on rock especially if accompanied by hailstones.
- When it rains, the rock absorbs water and swells.
- When dry season comes, the rock loses water and the outer surface shrinks.
- The process is repeated and the minerals become loosely attached to another e.g. in Kenyan Coast at Tudor and Miritini areas, which have Jurrassic rocks.


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