| A | B |
| Weather | state of the atmosphere at a specific time and place |
| Humidity | amount of water vapor in the air |
| Dew point | temperature at which air is saturated and condensation forms |
| Fog | stratus cloud formed near the when air is cooled to its dew point |
| Precipitation | water falling from clouds; can be in the form of rain |
| Air mass | large body of air that has properties similar to the part of Earth’s surface over which it develops |
| Front | boundary between two air masses of different density |
| Tornado | violently rotating column of air in contact with the ground |
| Hurricane | most powerful storm; large swirling |