Across
- 3. the smallest thing in the universe
- 5. the fastest thing in the universe
- 6. the middle of an atom
- 8. a push or pull
- 9. what makes matter do something
- 10. what makes up the universe
Down
- 1. a force that pulls smaller objects towards bigger objects
- 2. the study of the smallest form of matter and energy
- 4. the study of light,colours and the eye
- 7. the study of the relationship between electricity and magnetism