Clinical Thermometer: 1.5 Marks
Laboratory Thermometer: 1.5 Marks
The clinical thermometer is used to measure the temperature of human body. Hence, its use is limited for temperatures around 37 degrees Celcius. These thermometers thus have a range of 35∘ C to 42∘ C. It gives a more accurate measurement. It also has a kink, which holds the reading of mercury even when its taken away from contact.
Laboratory thermometers can be used to measure a variety of substances. These substances can be very hot or even very cold. For such reasons, it has a relatively broader area of measurement. These thermometers also do not have any kink, hence, the temperature is measured while the thermometer is still in contact.
Th range of laboratory thermometers is -10∘ C to 110∘ C.