Across
- 5. depends on the average kinetic energy of the particles of a substance
- 6. a solid in which the particles are arranged randomly
- 9. a force that tends to pull adjacent parts of a liquid's surface together, decreasing surface area to the smallest size
- 10. substances that retain certain liquid properties even at temperatures at which they appear to be solid
- 12. a gas that exists at a very high pressure and low temperature
- 13. collision in which there is no net loss of total kinetic energy
- 15. hypothetical gas that perfectly fits all the assumptions of the kinetic molecular theory
- 16. process by which gas particles pass through a tiny opening into a vacuum
- 18. substance in which the particles are arranged in an orderly, geometric, repeating pattern
- 19. the kinetic molecular theory is based on the idea that particles of matter are in constant ___________
Down
- 1. three-dimensional arrangement of particles of a crystal
- 2. spontaneous mixing of particles of two substances caused by their random motion
- 3. process by which particles escape from the surface of a nonboiling liquid and enter the gas state
- 4. physical change of a liquid to a solid by removal of energy as heat
- 7. the smallest portion of a crystal lattice that shows the three-dimensional pattern of the entire lattice
- 8. the attraction of the surface of a liquid to the surface of a solid
- 11. temperature at which a solid becomes a liquid
- 14. physical change of a solid to a liquid by the addition of energy as heat
- 17. substance that can flow and take the shape of its container