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Particle Theory
| Question | Answer |
|---|---|
| anything that takes up space and has mass | matter |
| all matter is made up of | particles |
| the particles of matter are always | moving |
| between particles, there is | space |
| particles are ___________ to one another | attracted |
| the energy an object has due to its motion is this kind of energy | kinetic |
| this is a measure of the average kinetic energy of something's particles | temperature |
| the form of matter with a fixed shape | solid |
| this form of matter has no shape, but has a certain volume | liquid |
| this form of matter has no shape or certain volume | gas |
| the two-word term that means the volume of something increases when the temperature increases | thermal expansion |
| the two-word term that describes how the volume of something shrinks when it cools | thermal contraction |
| the three-word phrase that describes the change from any state of matter to another | change of state |
| the change from solid to liquid | melting |
| the change from liquid to solid | freezing |
| the change from liquid to gas | evaporation |
| the change from gas to liquid | condensation |
| the change from solid to gas | sublimation |
| the change from gas to solid | deposition |
| the temperature at which something changes from a solid to a liquid is called its | melting point |
| the temperature at which something changes from a liquid to a gas is called its | boiling point |
| this is a graph or plot of temperature vs time | heating curve |