Difference Between Convection, Conduction, and Radiation: The process of transferring thermal energy from one system to another in the form of heat is called heat transfer. There are three types ...

Summary: convection Convection is the flow of heat energy from a region of high temperature to a region of low temperature by movement of a fluid. Convection only occurs in fluids - liquids and gases.

Learn about how heat transfer occurs.A vacuum flask can keep hot liquids hot and cold liquids cold. To keep water hot the flask must stop heat loss by conduction, convection and radiation.