Cooking an egg is one type of process, while the formation of snow is another. Which answer best explains which is exothermic and which is endothermic? Cooking an egg is endothermic because the egg gains heat from the surrounding Formation of snow is exothermic because water loses heat to the surrounding wh becomes snow. Cooking an egg is exothermic because the egg loses heat to the surroundings. Formation of snow is endothermic because water gains heat when it forms snow
