Across
- 2. Move in a continuous and smooth way.
- 5. The title of this crossword.
- 6. -273.15°c or -459.67°F.
- 8. The particles that are very close together.
- 9. The opposite of freezing.
- 11. The particles are close to one another but can move past each other.
- 14. Two substances that combine to make a solution.
- 15. The amount of space that a substance or object occupies.
Down
- 1. A combination of pure substances where the particles mix evenly.
- 3. Frozen water.
- 4. CO2.
- 7. Hold the particles together.
- 10. A minute portion of matter.
- 12. Physical substance in general.
- 13. The particles are far apart and can move anywhere by themselves.
- 16. A colorless,odorless reactive gas.