Matter & Energy Crossword Puzzle

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Across
  1. 9. instrument used to determine if a reaction is endothermic or exothermic
  2. 10. a reaction that absorbs heat energy and feels cold to the touch
Down
  1. 1. a reaction that releases heat energy and feels hot to the touch.
  2. 2. method, like temperature, to determine energy change in a reaction.
  3. 3. shift in a chemical reaction from reactants to products.
  4. 4. reaction in chemical ice packs, feels cold when activated
  5. 5. rapid heat and light release, e.g., lighting a candle.
  6. 6. type of change where the substance that it is does change.
  7. 7. energy that is transferred as a result of temperature difference.
  8. 8. type of change where the substance's physical properties change, but not its composition.