Chemistry and Energy

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Across
  1. 4. Used to describe chemical reactions
  2. 5. Reducing the amount of energy used
  3. 6. A change that makes a new substance that cannot be reversed
  4. 9. Energy sources that will eventually run out
  5. 12. Energy sources from the decompositions of organisms millions of years ago
Down
  1. 1. Renewable energy source that uses the sun to generate electricity
  2. 2. Renewable energy source that uses wind power to generate electricity
  3. 3. Substance that exists before a chemical reaction begins
  4. 7. Renewable energy from the heat in the interior of the earth
  5. 8. Matter that can be observed by changing the substance
  6. 10. Substance that forms as a result of a chemical equation
  7. 11. Renewable energy source that can be burned and used as a source of fuel