Crossword Puzzle

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Across
  1. 3. Energy in a mechanical form
  2. 8. Energy in the form of heat
  3. 9. Stored energy
  4. 10. The energy released during nuclear fission
  5. 13. A theory that helps explain how the universe was created
  6. 14. A subatomic particle with no charge
  7. 15. The branch of science that has to do with energy, matter, and nature
  8. 16. Everything is made up of this
Down
  1. 1. Energy in a chemical form
  2. 2. A subatomic particle with a negative charge
  3. 4. Energy in the form of electricity
  4. 5. The building block of everything
  5. 6. All existing matter and space considered as a whole
  6. 7. Energy in motion
  7. 9. A subatomic particle with a positive charge
  8. 11. Energy transmitted through radiation
  9. 12. The force that keeps the planets in orbit around the sun
  10. 14. The “eye” of a cell