Multiple choice general knowledge science & technology

A thermometer is a device used to measure what?

  1. Humidity

  2. Pressure

  3. Temperature

  4. Length
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A thermometer is a scientific instrument designed to measure temperature. It works on principles like thermal expansion of liquids (mercury or alcohol) or electrical resistance changes. Hygrometers measure humidity, barometers measure pressure, and rulers or tape measures measure length.

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