heat energy is transferred by conduction because: conduction is only apparent when there are different temperatures and are most effective with solids and where kinetic energy between the materials has a result of the vibrations of particles meaning the movement of the material.For conduction to take place there must something in between the objects which is why Conduction doesn’t occur in a vacuum because there isn’t anything between the material that is trying to conduct. The states of matter that conduction can take place in are all three, solids, liquids and gases.