1. Weathering of Rocks Concept Map

2. Rocks Made from Grains of minerals Close together Spaces in between Rocks are porous Rocks are non porous Breaking up is called Weathering Breaking up caused by Chemicals – including acid rain. Mechanical changes – including thermal changes, water and wind. Very slow process – takes millions of years. How long? Followed by: Erosion Which results in: Particles being transported away by water and wind Particles move faster and further if: The particles are small They become: Smaller and rounder Due to: Abrasion Then they are: Deposited To become Sedimentary rocks That may have: Fossils of plants or animals

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