What are the three methods of heat transfer?

The three methods of heat transfer are conduction, convection, and radiation.

Conduction refers to the transfer of heat through a solid material without any movement of the material itself. This occurs when there is a temperature difference within a material, causing heat to flow from the hotter region to the cooler one through direct contact between molecules.

Convection is the heat transfer that occurs in fluids (liquids and gases) due to the motion of the fluid itself. When a fluid is heated, it becomes less dense and rises, while cooler, denser fluid sinks. This movement creates a current that transfers heat throughout the fluid, making convection an essential mechanism in various processes, including weather patterns and cooking.

Radiation is the transfer of heat in the form of electromagnetic waves. Unlike conduction and convection, radiation does not require a medium to transfer heat; it can occur in a vacuum. This is the reason why the sun can warm the Earth despite the vast emptiness of space between them.

The other options include terms that do not accurately represent the fundamental methods of heat transfer. For instance, sublimation refers to the phase transition from solid to gas and is not a method of heat transfer, while insulation refers to materials designed to reduce heat transfer rather than a