Melting means changing from a solid into a liquid by adding heat energy, and when a substance melts, it changes phase from a solid to a liquid by the application of heat. Given these facts, what can be done to a solid by adding heat energy among the following options:
- massive damage
 - phasing the bubbles
 - It expands
 - cooling the center
 - Evaporation
 - changing the phase
 - removing the air
 - Water expanding


 

      changing the phase   