A thermometer is a device that measures temperature .A thermometer has two important elements: (1) A temperature sensor (e.g. the bulb of a mercury in-glass thermometer) in which some physical change occurs with temperature. (2) Some means of converting this physical change into a numerical value (e.g. the visible scale that i . . .
A temperature is an objective comparative measurement of hot or cold. It is measured by a thermometer. Several scales and units exist for measuring temperature, the most common being Celsius (denoted °C; formerly called centigrade), Fahrenheit (denoted °F), and Kelvin (denoted K). . . .