One way of checking to see if a thermometer is working properly is to get a second one and see if the temperatures match.
Another method thing you can do is put it in your mouth, and it should read around 98.6 degrees Fahrenheit 37 degrees Celsius.
Such thermometers are based on the fact that the liquid expands when the temperature increases. That's what the thermometers measure.
The boiling point is the temperature at which a liquid turns into a gas.
A thermometer is most commonly used to measure the temperature of a liquid. Other methods, such as infrared thermometers or thermocouples, can also be used depending on the specific application and characteristics of the liquid.
A thermometer is used to measure air temperature, or the temperature within a solid or liquid.
You can insert a thermometer directly into a liquid, but not into a solid. You can fairly easily measure the surface temperature of a solid object, but that does not necessarily reflect the temperature inside.
You're measuring the boiling point of the liquid.
A thermometer is used to measure temperature accurately by containing a liquid that expands and contracts with changes in temperature. The liquid rises or falls in a narrow tube, showing the temperature on a scale. The thermometer is calibrated to ensure accurate readings.
The answer depends on what you want to measure: its mass, length, "equatorial" circumference, volume, density, temperature, conductivity, ...
Thermometers measure temperature by using liquids (like mercury or alcohol) that expand and contract based on temperature changes. As the liquid expands, it rises in a narrow tube to indicate the temperature. The scale on the thermometer is calibrated to show the temperature based on how much the liquid expands or contracts.
Liquid filled thermometers are not digital devices. They rely on the expansion and contraction of a liquid to measure temperature, whereas digital devices use electronic sensors to measure and display temperature readings.
A thermometer used to measure air temperature uses a glass tube filled with a liquid either alcohol or mercury. When the temperature increases the particles of liquid expand, filling the glass tub. Thermometers that are used to measure you body temperature uses infrared sensors.
Temperature is the measure of thermal energy. And how you measure thermometers is that if the liquid expands when its temperature increases. The height of a column of the liquid inside the tube shows the temperature.