Across
- 5. the state of matter with the lowest energy
- 6. element number 2 on the periodic table
- 8. when a substance turns from solid to liquid
- 9. when a gas turns into a liquid
- 11. the 8th element on the periodic table
- 12. a substance made of 2 or more different atoms
Down
- 1. when a substance turns from liquid to solid
- 2. state of matter with the most energy
- 3. a substance made of one type of atom
- 4. state of matter where the particles slide around
- 7. when liquid turns into gas
- 10. the first element on the periodic table