Question

Explain an activity to show hot air rises up​

Answer 1

Answer:

Because the particles of air become warm and move away from each other and take up more space. And air on becoming hot occupies more space. Since the particles move away from each other, the air becomes less dense and lighter in weight. As a result, warm air rises up.

Answer 2

Answer:

Here is your answer

Explanation:

1. Blow the balloon up to stretch it and help make it more flexible and let the air out.
2. Place the balloon over the mouth of the empty plastic bottle.
3. Stand the bottle in the centre of the container filled with hot water. Wait a few minutes and notice the balloon start to inflate and expand.

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