Temperature is a quantitative measure of the warmth of an object or the environment. It reflects the degree of thermal agitation of particles (atoms, molecules) in matter.
Temperature is measured using thermometers and is typically expressed in degrees Celsius (°C), Fahrenheit (°F), or Kelvin (K).
Examples
The normal human body temperature is around 37 °C (98.6 °F).
Water freezes at 0°C (32 °F) and boils at 100 °C (212 °F) under normal atmospheric pressure.
The melting temperature of steel is about 1370 °C to 1540 °C (2500 °F to 2800 °F).