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REVISION

Discover the science behind common household items like pans, fridges, and toasters. Explore why pans have metallic bodies with plastic handles, how light-colored fridges keep food cold, and the significance of air in insulation. Learn about kettle design, the reasoning behind silver toaster finishes, and how foam containers retain heat. Understand how cavity wall insulation works, why certain materials are used in cookware, and the principles behind solar cookers. Get insights into comfort in living spaces and the effectiveness of various insulating materials.

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REVISION

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Presentation Transcript

  1. REVISION

  2. PIG

  3. Why is the body of the pan metallic and the handle plastic? (2)

  4. How does a light coloured fridge keep the contents cold? (1)

  5. Why is it important that the air is trapped in any type of insulation (1)

  6. Why is the heating element placed at the bottom of a kettle?(2)

  7. Why are a lot of toasters silver? (1)

  8. How do foam containers keep food warm?. (3)

  9. Explain how cavity wall insulation keeps houses warm (3)

  10. Why can these people float in the air? (2)

  11. Why is the bottom of the pan made of copper instead of steel? (1)

  12. Why is the back panel of the fridge black? (2)

  13. Complete the table.

  14. How does the heat get through the pan? (3)

  15. The bottom of the pan is hot. How does the heat get to the egg through the water? (2)

  16. How does a puffa jacket keep you warm? (3)

  17. Why do feet feel warmer on carpets than laminate flooring (3)

  18. How does a solar cooker work? (1)

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