Across
- 2. A substance that fly's freely
- 5. A stable subatomic particle with a positive charge
- 7. Something that flows freely and doesn't keep its shape
- 8. The amount of space something takes up
- 9. A subatomic particle of about the same mass as a proton
Down
- 1. The weight of something or the amount of this there are
- 3. A extremely tiny particle
- 4. Something that cant lose its shape
- 6. A stable subatomic particle with a negative charge