Physical and Chemical Changes

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Across
  1. 3. A change in an object's appearance
  2. 4. A reaction when an object absorbs heat
  3. 8. A change from one substance into another substance
  4. 10. The ability of an object to be harmful or poisonous
Down
  1. 1. A reaction when an object releases heat
  2. 2. Observations that include descriptions not using numbers
  3. 5. Observations that include numbers
  4. 6. The ability of an object to catch fire
  5. 7. The ability of an object to react to another substance
  6. 9. The ability of an object to rust or break down