Brookelyn Williams Crossword

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Across
  1. 3. the amount of space occupied
  2. 4. the amount of matter
  3. 7. when one or more substances react
  4. 9. a physical substance
  5. 11. substances that are formed during a chemical change
  6. 12. the ability to do work or cause change
  7. 14. substance that increases the rate of chemica change
  8. 16. a pure substance that is formed when two or more different elements combine
Down
  1. 1. a piece of matter
  2. 2. any substance that cannot be decomposed
  3. 4. a group of atoms
  4. 5. at different temps
  5. 6. a measure of average kinetic energy of the atoms
  6. 8. thermal energy transferred between two
  7. 9. a combination of substances that can be physically separated from one another
  8. 10. the ability of molecules of the sam substance to stick together
  9. 13. a substance present before a chemical reaction occurs
  10. 15. when different molecules are combined