Across
- 2. The branch of science concerned with energy, matter, and nature
- 3. A subatomic particle with a neutral charge
- 7. A subatomic particle with a negative charge
- 8. Energy in a chemical form
- 9. Energy in the form of electricity
- 10. Energy transmitted through radiation
- 12. The force that keeps the planets in orbit around the sun
- 13. Energy in motion
- 14. Energy in a form of heat
- 17. A subatomic particle with a positive charge
Down
- 1. A theory that helps explain how the universe was created
- 3. Energy that occurs after nuclear fission
- 4. Energy in a mechanical form
- 5. All existing matter and space considered as a whole
- 6. Stored energy
- 11. The "eye" of a cell
- 15. Everything is made up of this
- 16. The building blocks of life