The video tutorial explains the three methods of heat transfer: conduction, convection, and radiation. Conduction involves heat transfer through collisions between molecules, typically in solids. Convection occurs in fluids, where warmer areas rise and cooler areas sink, creating a flow. Radiation involves electromagnetic waves transferring heat without needing a medium, such as the sun warming the Earth. The tutorial provides examples and details on how each method works, emphasizing the movement of molecules and energy transfer.

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