Thermometers

Class 7 Science: heat (measuring temperature)

Use a clinical or a laboratory thermometer to measure your body, a fever, ice water and boiling water. Read the scale.

Words to know

Temperature
How hot or cold something is, in degrees Celsius (°C).
Clinical thermometer
Measures body temperature, from 35 to 42 °C.
Laboratory thermometer
Measures from about −10 to 110 °C.
Normal body temperature
About 37 °C.

Quick check

Answer 3 questions to check what you learned.

1. Normal human body temperature is about…
2. Why can't a clinical thermometer measure boiling water?
3. Water freezes at…

Try at home

With an adult, use a clinical thermometer to take everyone's temperature at home. Are they all close to 37 °C?

Next, try a full lab