H20 Unit Practice Crossword Puzzle

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Across
  1. 2. water deep in the ground harnessed by wells.
  2. 4. When a chemical force weathers
  3. 6. made up of different elements
  4. 7. water that falls on impervious surfaces picking up chemicals and going into the drains
  5. 8. the word meaning to stick to other substances
  6. 12. A system of water in an area
  7. 15. water you use that goes to the sewer.
  8. 16. has a neutral charge
  9. 18. have a positive charge
  10. 19. the smallest amount of a compound that can take place in a chemical reaction(for example one ________ of water)
  11. 21. when 2 or more stuff are mixed together and can easily be separated
  12. 22. a solvent that dissolves the most substance is a _______.
  13. 23. made up of a single kind of atom.
  14. 24. the type of bond that bonds two elements together
  15. 26. the substance being dissolved in the solvent.
  16. 28. When atoms rearrange themselves to make a new subtsances
  17. 29. the number of protons and neutrons in an atom.
  18. 30. A kind of surface that does not allow water to get through.
Down
  1. 1. the name of which process freezes water breaking water.
  2. 3. When a physical force weathers
  3. 5. where water soaks in and becomes ground-water
  4. 9. what 99% of earths water is.
  5. 10. A compound made up of 2 hydrogen and 1 oxygen.
  6. 11. has a negative charge
  7. 12. A type of plant that purifies water.
  8. 13. the word meaning to stick to itself.
  9. 14. what everything is made of.
  10. 17. The item that dissolves the solute
  11. 20. Where protons and neutrons are mashed together.
  12. 25. the number of protons in a element
  13. 27. the quality of water