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StudyScience7
Fluids, gases, and solids
| Question | Answer |
|---|---|
| condensation | The process of changing state from a gas to a liquid. |
| Density | The mass of a given volume. A way to describe how closely particles are packed together in a solid, liquid or gas. |
| Evaporation | The process of changing state from a liquid to a gas |
| Expansion | an increase in volume cause by a decrease in external pressure |
| Mass | The amount of matter in a substance or an object; the more matter, the greater the mass. |
| Melting | The process of changing state from a solid to a liquid |
| melting point | The temperature in which a solid starts to liquefy |
| boiling point | The temperature in which a liquid changes into a gas. |
| Solidification | the process of changing state from a liquid to a solid by the removal of heat. |
| Sublimation | the process of changing state from a solid to a gas without going through the liquid stage. |
| volume | The amount of space taken up by a substance or object. |
| formula for density? | Mass divided by volume |
| Kinetic molecular theory | describes how adding energy to particles makes them move faster and further apart. |
| Particle model of matter | Describes how particles of solids are closer together than particles of liquids. Particles of a gas are spread far apart. |
| kinetic energy | the energy of motion |