Question

laboratory thermometer have very large ranges.why?

Answer 1

The temperature range of clinical thermometer is 35ºC to 42°C and that of laboratory thermometer is -10ºC to 110ºC. The unit for temperature is °C. The normal temperature of human body is 37°C. This is because they are used in factories where temperature of substances can be high or low.

Answer 2

Because the temperature of the substances may vary by a massive margin.
For example : Temperature of liquid Nitrogen is about -100° C.