We are here with the self-inflating balloon experiment, which is shown as a project paper for preschool students to improve themselves.
What do we need?
Note: There’s no need for a stick here, so we used it so that our hands wouldn’t let you see the experiment.
Fill your first bowl with ice and water to become famous.
Fill your second container with very hot water.
Stretch the balloon and maybe inflate it a few times.
Place the mouth of the bottle as it is with the mouth part of the balloon. Make sure it’s well wrapped.
Sit in a bowl filled with hot water at the bottom of the bottle and in the balloon.
Now sit your bottle in a bowl filled with cold water and make sure there’s anything in the balloon.
Repeat the above operations repeatedly. So shift your bottled balloon between hot water and watch the balloon swell and go out.
You can answer the question about this activity as follows:
Question: Why do you think the balloon swelled in hot water?
Answer: When the bottle was placed in hot water, the air inside got warmer and needed more space. That’s why the balloon swelled up.
Question: Why do you think the balloon went out in cold water?
The answer is: The cold air shrinks and needs a smaller area than hot air.