Final answer:
In an endothermic process, the system gains heat from the surroundings and the temperature of the surroundings decreases. In an exothermic process, heat is released by the system into the surroundings and the temperature of the surroundings increases.
Step-by-step explanation:
A chemical reaction or physical change is endothermic if heat is absorbed by the system from the surroundings. In the course of an endothermic process, the system gains heat from the surroundings and so the temperature of the surroundings decreases. On the other hand, a chemical reaction or physical change is exothermic if heat is released by the system into the surroundings. Because the surroundings are gaining heat from the system, the temperature of the surroundings increases.