Fire Safety Puzzle

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Across
  1. 3. A sudden urgent event requiring immediate action
  2. 5. Fire involving flammable liquids such as gasoline or oil
  3. 7. Fire involving ordinary combustibles like wood or paper
  4. 8. The acronym for fire extinguisher use: Pull, Aim, Squeeze, Sweep
  5. 9. US fire class involving cooking oils or fats
  6. 12. An undesirable or unfortunate happening that occurs unintentionally and results in harm or loss
  7. 17. A fire extinguisher type that smothers fire and removes oxygen
Down
  1. 1. A powder agent effective on flammable liquids and electrical fires
  2. 2. Gas needed to support combustion
  3. 4. European fire class involving cooking oils or fats
  4. 5. Fire involving combustible metals such as magnesium
  5. 6. The substance that burns to feed a fire
  6. 7. Fire involving energized electrical equipment
  7. 10. Emergency treatment given before professional medical care is available
  8. 11. One of the four components of the fire tetrahedron that must be present for fire
  9. 13. A non-conductive fire extinguisher agent safe for electrical fires
  10. 14. Damage or harm done to or suffered by a person
  11. 15. Equipment such as gloves, helmets, or goggles used for protection
  12. 16. The chemical reaction that produces fire when heat, fuel, and oxygen combine