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Mercury is a liquid at room temperature. When it heats up it expands, and when it cools it contracts. This is the re line that you see, and shows the temperature accurately. You usually have mercury because it is a liquid at room temperature, so it can go up and down freely.
Hope this helps :)
Wiki User
∙ 11y ago
Wiki User
∙ 14y agobecause it expands in heat
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What devices contain mercury?
Thermometer or barometer
Which part of the thermometer contains the mercury?
The internal capillary contain mercury.
What is in a thermometer besides Mercury?
There is nothing else in a mercury thermometer. However, some similar (glass tube-type) thermometers contain alcohol instead of mercury. Ray
Does an instant thermometer used for cooking contain mercury?
No, most instanst thermometers used for cooking are digital and therefore don't contain mercury. There may be some older style thermometers that do contain mercury.
What type of Thermometer is most likely to contain alcohol?
Mercury (not the planet, the metal.)
What do thermometers contain?
=The older thermometer's that I have used contain mercury the new ones are digital.==See the link for detailed answer.=
What does a thermometer contain water or Mercury?
If it's a silver liquid it's mercury, if it's red it's alcohol (not water)
Do pool thermometers contain mercury?
Most pool thermometers do not contain mercury. An easy way to tell if a pool thermometer contains mercury is if it sinks to the bottom of the pool rather than float.
Does a Kelvin thermometer contain mercury or alcohol?
There is no mechanical difference between a kelvin thermometer and any other kind so I think it would be the same as other thermometers i.e. Alcohol (because it is not as dangerous as mercury)
What is a thin glass tube with bulb on one end that contains a liquid?
Thermometer. They contain Mercury which is a metal.
What is in the laboratory thermometer?
There are many kinds of thermometer in use. Liquid in glass thermometers usually contain alcohol (dyed red or blue) or mercury (silvery coloured).
Why the tube leading up from the bulb in a thermometer is very thin?
because its contain a silver mercury exactky fixed to it
