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Rocks and Weathering
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Rocks and Weathering

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Introduction to rocks and weathering. Physical weathering including freeze-thaw and heating and cooling.

Introduction to rocks and weathering. Physical weathering including freeze-thaw and heating and cooling.

Published in: Education

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  • 1. How could weathering break down the rocks into small pieces?
  • 2. Rocks and Weathering
    • Learning Objectives :
    • To understand the terms ‘Physical weathering’, ‘Heating and cooling’, ‘Freeze-thawing’ and ‘Erosion’ and their effects on rocks.
    • To explain what happens during physical weathering and that no new substance is made.
    • To know some examples of where physical weathering occurs.
  • 3. Practical Activity
    • Safety First:
    • Wear safety goggles
    • Stand up
    • Tuck your chair & bags under your desk
    • Tie back long hair
  • 4. Investigation
    • Investigate the effects of heating and cooling by heating up a piece of marble/limestone.
    • What happens after heating the marble?
    • The piece crumbles into smaller pieces.
  • 5. What is happening?
  • 6.  
  • 7. 8G Freeze-thaw
  • 8. Weathering by ice “ Onion skin” weathering
  • 9. Tell me why....
    • Why do mountaineers climbing mountains start early in the morning and try to complete their climb on mountain faces before midday?
    • Explain why rock falls are a major hazard to climbing.
  • 10. Rocks and Weathering
    • Learning Objectives :
    • To understand the terms ‘Physical weathering’, ‘Heating and cooling’, ‘Freeze-thawing’ and ‘Erosion’ and their effects on rocks.
    • To explain what happens during physical weathering and that no new substance is made.
    • To know some examples of where physical weathering occurs.