Across
- 6. for of matter in which particles of many kind combine
- 7. form of matter in which 2 or more than 2 particles combine chemically
- 8. level of hardness of a substance or matter
- 10. property showing compressing
- 11. building blocks of matter that may or may not exist independent
- 12. process or conversion of gas to solid on cooling
Down
- 1. an example of molecule in which particles combine chemically in a fixed ratio
- 2. directly dependent on force of attraction existing amongst the particles
- 3. an example of molecule made up of particles of its own kind
- 4. process or conversion of solid to liquid on heating
- 5. tendency to flow
- 9. the mass per unit volume of a substance