click below
click below
Normal Size Small Size show me how
Chapter 5 Lesson 3
Changes of State
| Question | Answer |
|---|---|
| condensation | happens when a substance changes from a gas to a liquid |
| sublimation | happens when a substance changes directly from a solid to a gas |
| freezing point | the temperature at which a substance changes from a liquid to a solid |
| boiling point | the temperature at which a substance changes from liquid to a gas |
| melting point | the temperature at which a substance changes from a solid to a liquid |
| evaporation | happens when a substance changes from a liquid to a gas |
| thermal expansion | the increase in an object's volume due to a change in heat |
| thermal contraction | the decrease in an object's volume due to a change in heat |
| 3 states of matter | solid, liquid, gas |
| solid | molecules are tightly packed allowing very little room for movement |
| liquid | molecules move more freely and take on the shape of its container and has a definate volume |
| gas | molecules are far apart and has no definate volume or shape |
| heat | the removal or addition of this causes matter to change states |
| dew or moisture on outside of a soda can | example of condensation |
| dry ice | example of sublimation |