Water

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Across
  1. 2. O in H2O stands for _____.
  2. 3. One method early people used for treating water.
  3. 5. Earth would look like this without water.
  4. 8. What percent of our blood is water?
  5. 9. H2O in water form is a _____.
  6. 12. A chemical that is used to treat water.
  7. 13. Liquid H2O becoming a gas.
  8. 14. The amount of molecules in a single drop of water.
Down
  1. 1. Rain, snow, sleet, and hail.
  2. 4. H2O in ice is a _____.
  3. 6. The first people to record treating water.
  4. 7. First country to use chlorine to treat water.
  5. 10. Supplies springs and wells.
  6. 11. H2O in steam is in _____ form.