Physical and Chemical Changes and Reactions

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Across
  1. 6. In a ball and stick model, this represents the bonds.
  2. 7. A change in size, shape, form, or state of matter in which the matter's identity stays the same.
  3. 10. The starting substances in a chemical reaction.
  4. 11. Speed up chemical reactions.
  5. 12. A characteristic of matter that can be observed as it changes to a different type of matter.
  6. 14. A change in matter in which the substances that make up the matter change into other substances with new physicacharacteristicl properties.
Down
  1. 1. A process in which atoms of one or more substances rearrange to form one or more new substances.
  2. 2. The substances produced by the chemical reaction.
  3. 3. A characteristic of matter that you can observe or measure without changing the identity of the matter.
  4. 4. Slow or stop a chemical reaction.
  5. 5. A strong force of attraction holding atoms together in a molecule.
  6. 8. Speed up chemical reactions in living cells.
  7. 9. In a ball and stick model, this represents the atoms.
  8. 13. Two or more atoms that are held together by bonds and act as a unit.