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What is conduction?
Heat energy can be transferred from one body to the other or from one location in a body to the other.
If two objects at different temperatures are brought in contact with each other, energy is transferred from the hotter object (that is, the object with the greater temperature) to the colder (lower temperature) object, until both objects are at the same temperature.
In solids, heat transfer takes place mostly through conduction.
Any time two object touch, heat conduction will happen. Touching a hot iron is an example of conduction – the heat passes out of the iron and into your hand. So is holding an ice cube – the heat is conducted out of your hand, and into the ice cube (that's why your hand feels cold).
Heat is transfered via solid material (conduction), liquids and gases (convection), and electromagnetical waves (radiation).
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