CONVECTION is the transfer of heat from high temperature to low temperature with movement of mass or medium due to temperature difference in the region. Although, convection is a bit similar to conduction, but convection involves movement of substances. Such as wind system in our planet. Air moves due to temperature difference in every part of our planet. Then, CONDUCTION is the transfer of heat, of course from high temperature to low temperature when two objects (such as metals) are in direct contact (without the movement of metals).