Across
- 2. Smallest particle in a chemical
- 7. A particle smaller than an atom
Down
- 1. Solid to liquid
- 2. The amount of matter an object contains is its _____________
- 3. Liquid to gas
- 4. Solid to gas
- 5. Everything is made of _______________
- 6. __________ is made of matter
- 7. Solid, Liquid, Gas, Plasma
- 8. The middle of an element