Use the lab thermometer to measure temperature accurately in physics experiments. Additionally, it usually consists of a glass tube filled with mercury or alcohol, which expands and rises when heated.

A scale marked in degrees Celsius (sometimes Fahrenheit) is printed alongside the tube.

In physics labs, it is used to:

Measure temperature changes during experiments
Study thermal expansion, specific heat, or thermodynamic laws
Monitor temperature in setups like calorimeters or heat transfer experiments
Lab thermometers are precise and sensitive, typically marked from –10°C to 110°C or more, additionally depending on the experiment requirements.