The melting point of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure and is usually specified at a standard pressure such as 1 atmosphere or 100 kPa.
Ice cubes put in water will start to melt when they reach their melting point of 0 °C
Melting points (in blue) and boiling points (in pink) of the first eight carboxylic acids (°C)
Kofler bench with samples for calibration
Automatic digital melting point meter
Temperature is a physical quantity that quantitatively expresses the attribute of hotness or coldness. Temperature is measured with a thermometer. It reflects the average kinetic energy of the vibrating and colliding atoms making up a substance.
A typical Celsius thermometer measures a winter day temperature of −17 °C
Plots of pressure vs temperature for three different gas samples extrapolated to absolute zero
An illustration of the range of cosmic temperatures