Evidence of a Chemical Change

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Across
  1. 1. When a new substance is formed, it is a ______ reaction.
  2. 3. The substances on the left side of a chemical equation is called the ______.
  3. 7. _________ is the emission of light by an organism.
  4. 9. When energy is released, it is a ______ reaction.
  5. 11. When you mix vinegar and baking soda, you can observe a release of ______.
Down
  1. 2. Fireworks are an example of this change.
  2. 4. The substances on the right side of a chemical equation is called the ______.
  3. 5. When a new solid is formed during a chemical reaction.
  4. 6. When energy is absorbed, it is a ______ reaction.
  5. 8. Carving wood is an example of a ______ change.
  6. 10. Exothermic and endothermic reactions are results of changes in ______ energy.