1. They are in a sweet shop because they are describing all the different sweets.
2. They are at an outside pool as there if a lifeguard present.
3. They are in a shopping mall as they describe that the cart got heavier as they added things to it.
4. They are in a car wash as they describe how the car is being cleaned with the machinery.
5. They are on a school playground as they talk about the swings and monkey bars, and they mention a teacher so they must be on break time.