| A | B |
|---|
| What changes matter into different phases | energy |
| substances change phases by what? | adding or taking away energy |
| liquid water - heat = | ice |
| liquid water + heat = | steam |
| changes of phase are____ changes | physical |
| matter changes form but is the ____ substance | same |
| melting | change of a solid to a liquid by adding heat |
| freezing | change of a liquid to a solid by losing heat |
| vaporization | change of a substance from liquid to gas by adding heat |
| 2 forms of vaporization | evaporation and boiling |
| evaporation | phase change thaoccurs at the surface of liquid |
| boiling | process in which inside of a liquid changes to a gas by adding heat |
| condensation | change of a gas to liquid by losing heat |
| sublimination | solid changes directly to gas when heat is added, dry ice |
