#Experiments 8
In this experiment we are going to see if hot and Cold air are different in terms of strength, properties and power.
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What you need are
- A balloon
- An empty non plastic bottle
- A basin with hot water.
Take care hot water must be handled with care
- Inflate the balloon slightly and place it on the neck of the bottle
- Hold the bottle for a minute or two in the hot water
The balloon inflates
Because
.....the air, like all substances, is made tiny moving particles called Molecules. The heat makes these Molecules move apart and the air in side the bottle spreads into the balloon and inflates it.
3. Now run the cold water tap on the balloon
What happens
The balloon deflates
Because
......the air that is now affected by the cold water contracts and so the air occupies only the space in the bottle
