Science

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Across
  1. 4. A substance that has become less dangerous
  2. 7. will dissolve skin or material
  3. 8. A piece of equipment that is used to burn things
  4. 9. A small piece of wood
  5. 11. Able to catch on fire
  6. 12. A reaction that can happen to metal
Down
  1. 1. A chemical made stronger
  2. 2. pH 0-pH 6
  3. 3. Two or more substances that give off a ...
  4. 5. Very dangerous
  5. 6. Can not be got back when mixed
  6. 10. pH 8-pH 14