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  1. What? Who? Where? Why?

  2. Key questions • What is weathering? • What is physical weathering? • What is chemical weathering? • What is biological weathering?

  3. Weathering? • Weathering is the breakdown of rocks caused by different elements of the weather.

  4. Freeze Thaw Weathering • What is physical weathering? What has happened to the tarmac?

  5. Freeze Thaw Weathering

  6. Onion Skin Weathering What has happened to the rock layers?

  7. Onion Skin Weathering

  8. Biological Weathering How is the rock being weathered?

  9. Biological Weathering What are these?

  10. Chemical Weathering

  11. What is weathering?

  12. Where is it?

  13. How does weathering affect me? • Which type of weathering is responsible for ruining your house? • 1. Leaking drainpipes due to rust. • 2. Water freezes and can crack roof tiles • 3. Insects may burrow into timbers leading to rotting.

  14. Key questions • What is weathering? • What is physical weathering? • What is chemical weathering? • What is biological weathering?

  15. What? Who? Where? Why?