Physical/Chemical Changes

Physical/Chemical Changes

Storyboard Text

  • Okay! Did you know that cutting the wood is an example of a physical change?
  • I have to cut some more wood for the fire, then you can have your marshmallows.
  • Well now that is an example of a chemical change.
  • Oh no! My marshmallow burned.
  • Cutting wood is a physical change because no new substances were formed. It is still wood. When burning a marshmallow, the heat causes a chemical reaction, producing water molecules which evaporate, and you are left with carbon. New substances were added and formed.
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