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Physical and Chemical Properties - Doris
Updated: 10/13/2019
Physical and Chemical Properties - Doris
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Storyboard Text

  • Did you know that this fire burning is an example of a chemical change?
  • No! How is that a chemical change?
  • Well when the fire burns the wood, the wood changes into a new substance. The wood turns into ash which is a new substance, and can't be turned back into wood.
  • Then what's an example of a physical change?
  • When you melt an ice cube, it turns into water. That water can be turned back into ice, so it's a physical change.
  • A chemical property is observed only after a chemical change occurs
  • A physical property is observed without changing the identity of the material
  • If you toast this piece of bread, then you made a chemical change.
  • The bread would then be burnt and you wouldn't be able to unburn it.
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