Across
- 6. A solid in which the atoms are arranged in a repeating pattern.
- 7. Different structural forms of the same element.
- 8. The process where a solid becomes a liquid.
- 9. A state of matter with a definite shape and volume.
- 10. A common amorphous solid, often used in windows.
Down
- 1. The smallest repeating unit of a crystal lattice.
- 2. A soft, black allotrope of carbon that conducts electricity.
- 3. A hard, clear allotrope of carbon with a 3D structure.
- 4. A type of solid with no definite shape or orderly arrangement.
- 5. The process where a liquid becomes a solid.