What is liquid thermometer
Answers
Answer:
A liquid crystal thermometer, temperature strip or plastic strip thermometer is a type of thermometer that contains heat-sensitive liquid crystals in a plastic strip that change colour to indicate different temperatures.
Explanation:
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Answer:
Liquid thermometers have some sort of substance (this used to be mercury, but today is generally alcohol) that is enclosed in a small glass tube.
Liquids
The first thermometers manufactured contained water but the fact that water freezes at 32 degrees Fahrenheit led manufacturers to switch to mercury. Many older thermometers contained mercury. Because mercury has very toxic properties that can lead to sickness or death if the thermometer breaks, more modern thermometers use a form of colored alcohol.
Identification
You can identify the liquid in a thermometer based on its color. Silver liquid indicates that the thermometer contains mercury, while red liquid is alcohol to which red coloring has been added. Although uncommon in modern thermometers, a clear color indicates water.
Function
The liquid in a thermometer typically stays in a bulb at the bottom of the device. Because liquids expand as temperatures rise, the liquid climbs the thermometer tube as the temperature warms.