# data[].attributes.attachment_link.title
Heat Transfer: Conduction, Convection, and Radiation

# data[].attributes.body
The process whereby heat moves from one body or substance to another by radiation, conduction, convection, or a combination of these methods.
Heat flow takes whenever two objects of different temperatures are brought into contact:What is heat? Heat as a result of the different in temperature .Thermal energy is the total energy of all of the atoms that make up an object.
Radiation Have you ever felt the warmth of the sun's ray on your face ?
Conduction Have you ever walked barefoot on hot sand?Your feet. The direct transfer of heat from of heat from one substance are,to another substance that it is touching is called conduction.
Convection In fluids(liquids and gases),particles move, easily from one place to another. As the transfer of heat by the movement of a fluid is called Convection.