| A | B |
| cirrus | wispy clouds found high in the sky |
| stratus | a low gray blanket of clouds found close to the ground |
| cumulus | puffy clouds found in the middle of the sky |
| thermometer | used to measure how hot or cold the air is |
| hygrometer | used to measure the amount of moisture in the air |
| anemometer | an instrument that uses a protractor and string to measure wind speed |
| Beaufort Scale | used to measure wind speed by observing things in nature |
| humidity | the amount of moisture in the air |
| temperature | how hot or cold the air is |
| condensation | the process of water in the form of a gas turning into a liquid |
| precipitation | a fancy word for rain, snow, sleet, etc. |
| evaporation | the process of water in the form of a liquid turning into a gas |