| A | B |
|---|
| barometer | an instrument for measuring the pressure of the atmosphere |
| thermometer | an instrument for measuring temperature |
| hygrometer | an instrument used to measure the amount of water vapor in the air |
| telescope | a tubular instrument that works by refracting or reflecting light rays |
| microscope | an instrument consisting of a lens to view minute objects |
| weather vane | an instrument used to measure wind direction |
| anemometer | an instrument used to measure the speed of wint |
| pH monitore | an instrument used to determine acidity or alkalinity of a substance |
| oscilloscope | an instrument for measuring electrical quantity |
| rain gauge | an instrument used to measure liquid precipitation |
