Across
- 2. the phase change of a substance from the liquid state to a solid-state.
- 4. the measure of hotness or coldness expressed in terms of any of several scales, including Fahrenheit and Celsius.
- 6. The temperature at which a material changes from a gas to a liquid;
- 7. a state of matter that retains its shape and density when not confined.
- 8. a fluid (such as air) that has neither independent shape nor volume but tends to expand indefinitely.
- 11. conversion of a substance from the liquid or solid phase into the gaseous (vapour) phase.
- 12. a form of matter in which many of the electrons wander around freely among the nuclei of the atoms.
- 13. anything that takes up space and can be weighed.
- 14. a sample of matter that conforms to the shape of a container in which it is held, and which acquires a defined surface in the presence of gravity.
- 15. temperature at which a liquid becomes a solid.
Down
- 1. the process by which water vapor in the air is changed into liquid water.
- 3. change of a solid into a liquid when heat is applied.
- 5. temperature at which the pressure exerted by the surroundings upon a liquid is equaled by the pressure exerted by the vapour of the liquid
- 9. Molecular Theory a theory that explains the states of matter and is based on the idea that matter is composed of tiny particles that are always in motion.
- 10. temperature at which the solid and liquid forms of a pure substance can exist in equilibrium.