kinda like steaming water and radiation steaming cup of tea
the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.\
like heat from a stove burner,or visible light from a candle, and x-rays
for example,after a car is turned on, a radiator,roasting thing
the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.