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chemical and physical changes by Fran 4ºA

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physical and chemical changes

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chemical and physical changes by Fran 4ºA

  1. 1. CHEMICAL CHANGE: OXIDATION
  2. 2.  Some fruits get old, this happens through a process called oxidation.  When cutting the apple and being exposed to the air, its color is darker.  This oxidation of the apple is produced by oxygen in the air.  The apple is no protected by the skin, loses wáter and ages. MONDAY TUESDAY MORNING TUESDAY AFTERNOON WEDNESDAY
  3. 3. PHYSICAL CHANGES: CHANGE OF STATE AND CHANGE OF SHAPE.
  4. 4. 1. TAKE A CHOCOLATE TABLET. THE CHOCOLATE IS SOLID.
  5. 5. 2. HEAT IT IN A POT.
  6. 6. 3. REMOVE IT WITH A SPOON.
  7. 7. 4. CHOCOLATE BEGINS TO MELT.
  8. 8. 5. WITH THE HEAT, THE CHOCOLATE BECOMES LIQUID.
  9. 9. 6. NOW THE CHOCOLATE IS LIQUID, NOT SOLID.
  10. 10. 7. PUT THE LIQUID CHOCOLATE IN AN ICE CONTAINER.
  11. 11. 8. PUT THE LIQUID CHOCOLATE IN THE FREEZER.
  12. 12. 9. IN TWO HOURS THE CHOCOLATE COMES FROM THE FREEZER IN SOLID STATE AND WITH DIFERENT SHAPE.
  13. 13. 10. I GOT DELICIOUS CHOCOLATES.
  14. 14. BY FRAN ANDRÉS GARCÍA – 3º

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