Chemistry Word Puzzle

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Across
  1. 1. another name for salt.
  2. 4. makes up a little less than 1% of the atmosphere.
  3. 7. shiny and is why stainless steel is stainless.
  4. 10. most abundant element in the universe.
  5. 12. strengthens the bones.
  6. 13. used to galvanize steel.
  7. 14. part of what you breathe.
  8. 16. gas used in glowing signs.
  9. 18. in most batteries.
  10. 19. gas that is used to make balloons float.
Down
  1. 2. a type of metal
  2. 3. most electronegative element.
  3. 4. foil.
  4. 5. used to disinfect water.
  5. 6. in bananas.
  6. 8. glows in the dark and is important to live
  7. 9. also called the basis of life
  8. 11. 5 cents.
  9. 15. 78% of the Earth's atmosphere.
  10. 17. strong and lighter than steel.
  11. 18. what is used to write with a pencil.