Because melting occur at high temperature; at this temperature bonds between particles are weaker.
Melting occurs when a substance absorbs heat energy. The rigid crystal structure of the particles breaks down, and the particles are free to flow around one another.
As the heat content increases, the temperature of the substance will rise. However, if the substance is not at its melting or boiling point, it will not undergo a phase change. Instead, its temperature will continue to increase until it reaches its melting or boiling point, at which point a phase change will occur.
Becoming liquefied by heat
Along subduction zones.
heat
Melting occur at the melting point. The solid is transformed in a liquid.
Melting occur when a solid starts to be a liquid.
Ice cream melting (or pretty much anything melting) is an endothermic process in that it requires the absorption of heat energy in order to occur. An example of an exothermic process is the burning of paper which gives off heat energy.
The scientific name for ice forming is "freezing" or "solidification." The scientific name for ice melting is "melting" or "fusion."
Melting occurs when a substance absorbs heat energy. The rigid crystal structure of the particles breaks down, and the particles are free to flow around one another.
They occur at the same temperature for a given substance just depends which direction the heat is flowing (up in the product or out into the surrounding area/substance).
As the heat content increases, the temperature of the substance will rise. However, if the substance is not at its melting or boiling point, it will not undergo a phase change. Instead, its temperature will continue to increase until it reaches its melting or boiling point, at which point a phase change will occur.
Heat.
heat it
Becoming liquefied by heat
Melting
Your body heat.