Across
- 2. it has a lower density compared to a solid
- 5. which can be observed without changing its composition
- 7. these particles are held together by strong forces
- 9. it involves burning and rusting
- 10. it undergoes changes in composition
Down
- 1. it collapses into a single quantum state
- 3. it is made up of tiny particles with empty spaces
- 4. it has the common three statesand properties
- 6. it is the most common form of matter in the universe
- 8. it has no definite shape