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Everyday Science · 45 sec

Melting

The science behind something you encounter, use, or wonder about.

  1. The useful idea

    Melting, or fusion, is a physical process that results in the phase transition of a substance from a solid to a liquid.

  2. How it works

    This occurs when the internal energy of the solid increases, typically by the application of heat or pressure, which increases the substance's temperature to the melting point.

  3. Why it matters

    At the melting point, the ordering of ions or molecules in the solid breaks down to a less ordered state, and the solid melts to become a liquid.

Look for Melting the next time you notice this pattern in everyday life.

Look for Melting the next time you notice this pattern in everyday life.

Test your recall

Which idea belongs to the explanation of Melting?

  • The useful idea — correct
  • How it works
  • Why it matters

Melting, or fusion, is a physical process that results in the phase transition of a substance from a solid to a liquid.

EvergreenLast verified 2026-07-19

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