Heat can also move through things that are solid, when they are touching each other. This is called conduction. If you put a metal spoon into a cup of very hot water, it will make the spoon hot after a while, because the energy moves from where it's hot, to where it's not. Are all things good at conducting heat? How do we stop things from getting cold - like a hot meal, or a hot drink? What job does insulation do?