Gavin Theismans crossword

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Across
  1. 1. the study of matter
  2. 3. material that has mass and takes up amount of space
  3. 4. the smallest unit of an element that has the properties of that element
  4. 6. a pure substance that is formed when two or more different elements combine
  5. 7. a combination of substances that can be physically separated from one another
  6. 8. the ability to do work or cause change
  7. 9. the substances that are formed during a chemical reaction
  8. 13. a process that changes a substance into a new substance
  9. 15. a chemical reaction that absorbs heat
  10. 16. the amount of matter in an object
Down
  1. 1. substance that increases the rate of a chemical reaction by lowering the amount of energy needed for the reaction to occur
  2. 2. chemical reaction that gives off heat energy
  3. 5. the amount if space an object occupies
  4. 7. two or more atoms joined together
  5. 10. the substance present before a chemical reaction occurs
  6. 11. the forces that hold atoms together
  7. 12. a pure substance that cannot be broken down into simpler substances by chemical reactions
  8. 13. the ability of molecules of the same substance to stick together
  9. 14. the transfer of thermal energy