Question

The size of a balloon increases when the pressure inside it increases. The balloon gets bigger when it is left in the heat from the Sun. Why does this happen?

Answer 1

Explanation:

This happens because the gas inside tend to expand because its temperature gets higher.

This is why the balloon that is put in a freezer for too long tend to gets smaller, because the gas temperature that is inside the balloon decreases.

(you can try it at home)

It is related to the temperature of the gas.