| A | B |
|---|
| thermal energy | the total energy of a substance's particles due to their movement or vibration |
| chemical energy | a form of energy that comes from chemical bonds |
| law of conservation of energy | the principle that the total amount of energy remains the same during physical or chemical change |
| melting | the change in state from a SOLID TO A LIQUID |
| freezing | the change in state from a LIQUID TO A SOLID |
| chemical reaction | a process in which substances undergo CHEMICAL CHANGES, forming NEW substances with DIFFERENT properties |
| evaporation | the process that occurs when vaporization takes place only on the surface of a liquid |
| boiling | the process that occurs when vaporization takes place inside a liquid as well as on the surface |
| condensation | the change of state from a GAS TO A LIQUID |
| sublimation | the change in state from a SOLID DIRECTLY TO A GAS without passing through the liquid state |
| vaporization | the change of state from a LIQUID TO A GAS |
