The video shows a young boy standing in front of a classroom, holding a clear plastic bottle filled with a clear liquid. He is wearing a blue and white shirt. The classroom has wooden desks and chairs, and there are several other children sitting at the desks. The walls are painted blue and there are posters and educational materials on the walls. The boy is using a lighter to heat the liquid in the bottle, which causes it to expand and create a bubble. The bubble grows larger and larger until it eventually pops. The children in the classroom are watching the experiment with interest.