| A | B |
| evaporation | the change of a substance from a liquid to a gas |
| condensation | the change of state from a gas to a liquid |
| precipitation | any form of water that falls to Earth's surface from the clouds |
| transpiration | the release of water vapor from plants |
| decomposition | the breakdown of substances into simpler molecular substances |
| combustion | the burning of a substance |
| snow | small white crystals of frozen water formed directly from the water vapor in the air |
| sleet | partly frozen rain; a mixture of rain and snow |
| rain | water falling in drops from clouds |
| hail | small lumps of ice that fall from clouds especially during thunderstorms |