Question

1. Take a balloon. Blow air into it. As we fill it up, it expands and it becomes harder to press the walls of the balloon. The inside air exerts pressure on the walls of the balloons. Open the mouth of the balloon slightly. What happens? Write your observations.​

Answer 1

Answer:

When we put air in the balloon, then the number of air molecules in the balloon increases. These air molecules cause collisions with the rubber walls of balloon and create an air pressure. The air pressure acting on the thin rubber walls of the balloon from inside causes the balloon to expand and get inflated