mercury
The capillary tube of the thermometer ( in case of a mecury thermometer).
The thermometer consists of a very fine glass tube having a very small bore and is called capillary tube. At one end of capillary tube a very thin glass bulb is provided. The bulb is filled with mercury( most of the times) or alcohol The other end of capillary tube is sealed. The capillary tube is protected by a thick glass tube called stem. On the stem are made markings. These markings are called graduations or degrees.
mercury
MERCURY
The red liquid in a thermometer is Mercury, which is usually encased in a glass tube
It is a glass thermometer.
It is a glass thermometer.
a clinical thermometer consists of mercury(Hg) concealed inside a glass tube with a bulb at the bottom. the bulb portion has the mercury and is thermo-sensitive. owing to the rise in temperature, when kept under the tongue of a patient, the mercury rises over the calibrated tube portion.
Prior to digital, thermometers werre made of a glass tube with numbers on it to indicate the temp. Inside the glass tube there was liquid mercury which would rise to the appropriate number when the temp was being taken under the arm, under the tongue or in the rectum.
A thermometer is an instrument, usually mercury in a vacuum inside a transparent glass tube, that is used to measure temperature. As the level in the mercury column rises and falls according to the surrounding temperature, a scale etched onto the glass is read. There are many types of thermometers according to the use they are put to.
No. The tube inside a thermometer is vacuum. If there was a gas inside, the pressure changes due to temperature changes would cause the liquid inside to expand/contract unevenly.