Table of elements

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Across
  1. 2. rocket fuel
  2. 4. glass ceramics and concrete
  3. 7. its used in soaps
  4. 8. in pools and water
  5. 9. for salty times
  6. 11. is used to make aircraft
  7. 12. like a shield
  8. 13. used for balloons
  9. 14. vital to survive
  10. 15. fireworks and medicine
  11. 18. for you're pretty teeth
Down
  1. 1. you breath it out
  2. 3. strong bones and teeth
  3. 5. a very light metal
  4. 6. used for explosive devices
  5. 7. matches and steel
  6. 10. to wrap sandwiches
  7. 16. our drive in volcano
  8. 17. to light up the sky
  9. 19. so you can breathe