Investigation 9 Crossword

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Across
  1. 4. the starting substances of a chemical reaction; the ingredients
  2. 5. the basic unit of a chemical element
  3. 6. made up of
  4. 10. a sentence showing a relationship, usually has a + and ->
  5. 12. to serve as a sign for
  6. 14. not straight
  7. 15. Oxygen, Hydrogen, and Carbon are examples of this
  8. 17. attractive forces that hold atoms together
Down
  1. 1. To breathe out
  2. 2. not able to be dissolved
  3. 3. characteristics of something
  4. 5. to come together
  5. 6. Magnesium sulfate, calcium chloride are examples of this
  6. 7. the ending substances of a chemical reaction; what is made
  7. 8. Reaction a process that changes one set of chemicals into another
  8. 9. to do something against your will
  9. 11. unlike anything else
  10. 13. move into a different position
  11. 16. System used as an example