Kelvin temperature scale

The Kelvin temperature scale is a way to measure temperature based on the fundamental properties of matter. Unlike Celsius or Fahrenheit, which set arbitrary points (like the freezing point of water), Kelvin starts at absolute zero—the point where particles have minimum thermal motion. Absolute zero is 0 Kelvin (about -273.15°C). The scale increases with temperature, using the same size units as Celsius, so 1 Kelvin equals 1 degree Celsius. Kelvin is used mainly in science because it provides an absolute measurement of temperature, ensuring consistency when studying thermodynamics, physical phenomena, and properties of materials.