The melting point is the specific temperature at which a solid changes into a liquid. At this temperature, the particles in the solid gain enough energy to break free from their fixed positions and start to move around more freely, forming a liquid. Every substance has its own unique melting point. For example, the melting point of ice, which is made of water, is 0°C. Knowing the melting point of a substance can help us identify it and predict how it behaves when it is heated. In GCSE Physics, understanding melting points is important for studying changes of state and energy transfers in matter.
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