| A | B |
| barameter | used to measure atmospheric pressure |
| thermometer | used to measure how hot or cold it is |
| anemometer | used to measure the speed of the wind |
| wind vane | used to measure the direction of the wind |
| hygrometer | used to measure how much moisture is in the air |
| water cycle | describes the continous exchange of water between the earth and the clouds |
| rain | a form of precipitation that occurs above 32 degrees F |
| frost | a form of condensation |