Conduction:Conduction is the transfer of heat energy between objects that are in direct contact with each other. It occurs when particles collide and pass on their kinetic energy.
Convection:Convection is the transfer of heat energy through the movement of fluids (liquids or gases). It involves the circulation of heated particles, which causes bulk movement and transfers heat.
Absorption:Absorption refers to the process by which an object takes in radiant energy and converts it into another form, usually thermal energy. When an object absorbs radiation, its temperature increases as it gains more internal energy.