Thermical energy: The heat energy or thermal energy is the energy that a body stores due to its temperature. This energy is proportional to the speed of its particles. The heat is the amount of energy transfer between two bodies, from the one that has more temperature tothe one with less temperature, when we put them in contact. Heat and variations of temperature:The energy we provida to a body is spent in increase its temperature. The diference among the differents materials is how degrades increases that temperature. This amount of degrades depends on a magnitude called "specific heat capacity. Good concuductors of heat have small SHC, but bad conductors the reverse. The units are j/kg·ºC.