Ashley's water crossword puzzle

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Across
  1. 6. is colorless, odorless and tasteless
  2. 7. colorless, odorless, tastless gas; but combustible
  3. 8. 97% of earth's water is
  4. 10. abbreviation is h2o
  5. 11. colorless, tasteless gas; but highly explosive
  6. 12. creates blue stains and scale
  7. 13. has been purified so that there are no minerals in it
  8. 15. causes spots on glasses
Down
  1. 1. is the most familiar way to measure liquids
  2. 2. is made up of 2 hydrogen atoms and 1 oxygen atom
  3. 3. is a disinfectant
  4. 4. is one form of acid rain
  5. 5. is the city average pH
  6. 9. limestone has a basic of
  7. 14. abbreviation is total dissolved solids