Q: How is the temperature measured?

<p style=";text-align:left;direction:ltr">Temperature can be measured using devices that measure the thermal energy of the particles of a substance</p><p style=";text-align:left;direction:ltr"><br /> When the temperature rises, the speed of the molecules increases, causing an increase in the volume or area of that substance due to its expansion</p><p style=";text-align:left;direction:ltr"> Special devices are used to measure the temperature indirectly from the expansion of the material, and these devices are known as &quot;thermometers&quot;, including the liquid thermometer; It is a thin glass tube filled with a small amount of mercury, and it depends on the thermal expansion property of the liquid as a result of high temperature, and thus the mercury becomes hotter; Which causes its size to increase and this is what appears on the scale</p>