| A | B |
|---|
| air mass | large body of air with uniform properties throughout |
| anemometer | instrument used to measure wind speed |
| barometer | instrument used to measure air pressure |
| front | boundary that forms when two different air masses meet |
| isobar | line that connects locations with same air pressure |
| isotherm | line that connects locations with same temperature |
| psychrometer | instrument used to measure relative humidity |
| rain gauge | instrument used to measure rain fall |
| thermometer | instrument used to measure temperature |
| wind | movement of air from an area of high pressure to low |
