Physical and Chemical changes

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Across
  1. 2. when you put gum in your mouth you usually do this
  2. 3. how toxic something is
  3. 6. Can conduct electricity
  4. 8. are changes that can be undone
  5. 9. makes up everything
  6. 10. when you were little you may have done this to your bed
Down
  1. 1. are changes that cant be undone
  2. 4. to blow up
  3. 5. this is a physical change that you do when you throw your paper away and don't want anyone seeing it
  4. 7. how flammable something is