Final answer:
The transfer of heat through electromagnetic waves without the involvement of particles is called radiation, which is different from conduction and convection.
Step-by-step explanation:
The method of heat transfer that involves the transfer of thermal energy through electromagnetic waves and does not involve particles is radiation. Unlike conduction, which requires direct contact between objects, and convection, which involves the movement of mass, radiation can occur through a vacuum, as no medium is needed for the transfer. The heat from the Sun reaching Earth is a prime example of heat transfer by radiation.