温度

A common misconception is that one takes temperature and heat to be the same thing. You should remember that heat is a form of energy. And temperature is not heat.

Temperature is the measure of "hotness" or "coldness" of a system or a body.

Another way to explain the difference between heat and temperature is that:

Heat is the total kinetic energy possessed by a body whereas Temperature is the average kinetic energy possessed by a body.

Temperature is measured by a thermometer. There are different scales of measuring temperature, like Celsius, Fahrenheit and Kelvin.

Temperature is a measure of how much internal energy a system has. A system with more energy has a higher temperature and a system with less energy has lower energy. Temperature also dictates the flow of thermal energy when two systems are in thermal contact. Energy would always flow from the system with higher temperature to the system with lower temperature until they are of the same temperature.