This increased molecular motion is detected as a rise in temperature. The energy is removed as heat by conduction, convection, and radiation. Conduction is the transport of heat through solids by direct contact. This transfer goes from molecule to molecule down the chain, like a row of dominos. You feel the effect of conduction whenever you touch a hot object.
Convection is the transfer of heat in fluids.
The process begins by heating a fluid. As the fluid warms, it becomes less dense and rises. Colder, denser fluid then sinks down and takes the place of the warmer fluid, creating a convection cell . Radiation is the transfer of energy through empty space or transparent materials. The energy travels in waves from the source, such as the energy that travels from the sun to Earth or the heat you feel coming from a stove.