If energy can’t be created or destroyed, what happens to heat when it eventually cools down?

Question

Energy cannot be created or destroyed, then where does it go when cooling or heating over time?

In: Physics

Answer 1

The energy in that object might be lower after it cooled down, but that’s just because to gave off that energy to its surroundings.

For example, the fridge in your kitchen takes heat/energy from the inside, and transfers it to the outside. Your food is now colder but your room is warmer. Your food now has less energy and your room has more. The total amount of energy in the universe stayed the same.