Heat transfer

 HEAT TRANSFER

Heat is energy. It is made of molecules too. We need heat to live or we will freeze to death. Heat can transfer through three types, convection, conduction and radiation.

Convection is the transfer of heat in gas or liquid form. e.g. heater, oven  

Conduction is the transfer of heat which can be transferred from molecule from molecule. It does not possibly change positions, instead they vibrate more or less against each other. e.g. stove

Radiation is the transfer of heat which comes from a source and travels through some objects or space. e.g X-rays, microwave

Heat is very useful to us because instead of being cold you can feel warm. It is important or else we won’t be able to use electricity for anything.