Across
- 2. solid carbon dioxide
- 5. a change of gaseous state directly to solid state without going to liqiud state
- 7. have no fixed shape but have a fixed volume
- 11. have a tendency to maintain their shape when subjected to outside force
- 13. causes cooling
- 14. a bulk phenomenon
- 15. example of matter in which various forms are present in variable ratios
Down
- 1. mass per unit volume of a substance
- 3. building blocks for all forms of matter
- 4. made up of 2 or more atoms
- 6. process in which certain solids directly changes to gases on heating
- 8. temperature at which solid starts melting
- 9. energy produced due to movement of particles
- 10. the tendency to flow
- 12. hidden heat that cannot be obtained in thermometer