Which instrument is used to measure temperature in degrees Celsius or Fahrenheit?

• A. Anemometer
• B. Thermometer
• C. Microscope
• D. Beaker

Answer: (B)

Temperature is measured with a thermometer. A thermometer is built with a scale that shows degrees in Celsius or Fahrenheit, so you can read how hot or cold something is using either scale. Traditional thermometers use a liquid like mercury or alcohol that expands as the temperature rises, which makes the liquid level climb higher on the tube. Digital thermometers use sensors and display the temperature as a numeric readout in Celsius or Fahrenheit. The other tools measure different things: an anemometer gauges wind speed, a microscope helps you look at tiny details, and a beaker is just a container for holding liquids. So the device you use to measure temperature in those two scales is a thermometer.