Cross word

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Across
  1. 5. reaction- A chemical reaction that releases thermal energy.
  2. 7. a substance or molecule that participates in a chemical reaction
  3. 10. Known as the "Middle life" around 252 to 66 million years ago.
Down
  1. 1. A chemical reaction that absorbs energy from it's enviorment
  2. 2. A substance or molecule that forms in a chemical reaction.
  3. 3. the mostly solid bulk of Earth's interior.
  4. 4. water or the amount of water that falls to the earth as hail, mist, rain, sleet, or snow.
  5. 6. any of the large bodies that revolve around the Sun in the solar system
  6. 8. reaction- A process that occurs when two or more molecule interact to form new molecules
  7. 9. The central or innermost portion of the Earth, lying below the mantle and probably consisting of iron and nickel.