BM 4A Large number of chunks of rock orbit the sun. Some of those that the earth meets in its yearly orbit around the sunglow and disintegrate from friction as they plunge through the atmosphere and sometimes impact the ground. Other chucks of rocks mixed with ice have long, off-center orbits that carry them lose to the sun, where the sun s radiation boils off frozen materials from their surfaces and pushes it into a long, illuminated tail. When warmer things are put with cooler ones, the warm ones lose heat and the cool ones gain it until they are all at the same temperature. A warmer object can warm a cooler one by contact or at a distance.
Some materials conduct heat better than others do.
Poor conductors can reduce heat loss. BM 4E Heat can be transferred through materials by the collisions of atoms or across space by radiation. If the materials is fluid, currents will be set up in it that aid the transfer of heat. Light from the sun is made up of a mixture of many different colors of light, even though to the eye the light looks almost white. Other things that give off or reflect light have a different mix of colors.