13 Changes to Have Fun With

by Deb on May 20, 2010

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Mini-Quiz time! In general a physical change is one that can be easily reversed, a chemical change usually cannot.  So see if you can work out which of these changes are physical and which are chemical.  Answers down the bottom in teeny tiny type.  And once you’ve done the quiz you can observe some of the changes 🙂

  1. Dissolving salt in water.
  2. Burning a candle.
  3. Drying clay.
  4. Frying an egg.
  5. Melting butter.
  6. Grating cheese.
  7. Metal rusting.
  8. Using baking powder in a cake.
  9. Lighting a match.
  10. Erosion.
  11. Boiling water.
  12. Using an electric heater.
  13. Using a gas heater.

Answers: 1 physical, 2 chemical, 3 physical, 4 chemical, 5 physical, 6 physical, 7 chemical, 8 chemical 9 chemical 10 physical 11 physical 12 physical 13 chemical

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{ 1 comment… read it below or add one }

Heather May 22, 2010 at 1:45 am

Science was never my forte, but I was able to guess at least half correctly. Have a great weekend!
.-= Heather´s last blog ..Thursday Thirteen 154: Recently Read =-.

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