- Conduction is the transfer of heat energy between two objects in contact with each other. For example, when you touch a hot stove, heat from the stove is transferred to your hand through conduction.

- Convection is the transfer of heat energy by the movement of a fluid. For example, when you boil water, heat from the bottom of the pot is transferred to the water through convection currents.

- Radiation is the transfer of heat energy through electromagnetic waves. For example, heat from the sun is transferred to the Earth through radiation.