science vocab

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Across
  1. 5. a substance used to increase the rate of a chemical reaction
  2. 7. a change that alters a substances make up
  3. 8. ph more than 7
  4. 10. elements with similar properties that create a “staircase” on the periodic table
  5. 13. when a solid is made after two substances are chemically combined
  6. 16. ability to dissolve
  7. 17. one or two letter abbreviation derived from the element's name.
Down
  1. 1. can be measured and studied without changeing the substance
  2. 2. a change that keeps the origional compisition
  3. 3. elements with similar properties found on the right side of the “staircase” on the periodic table
  4. 4. an elements tendacy to undergo a chemical change
  5. 6. elements with similar properties found on the left side of the staircase on the periodic table
  6. 7. an elements ability to conduct electricity
  7. 9. ph less than 7
  8. 11. constructed from the symbols of the elements composing the substance
  9. 12. can only be seen when the chemical change happens
  10. 14. a scale used to classify solutions
  11. 15. where elements are organized