Across
- 3. anything that takes up space
- 8. light energy
- 9. substance that changes directly from a solid to a gas
- 10. the negatively charged subatomic particle
- 11. the neutral part of an atom
Down
- 1. ability to do work
- 2. something that causes chemical energy to be released
- 4. phase change where a liquid becomes a solid
- 5. energy of movement
- 6. the smallest unit of matter that cannot be separated
- 7. positively charged subatomic particle in the nucleus