| Materials Required |
- Peeled hard-boiled egg
- A jar with opening slightly smaller than the diameter of the egg
- Very hot water.
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How to do it
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- Set the egg on the bottle.
- Run the bottle under very hot tap water.
- Warmed air will escape around the egg.
- Set the bottle away from the hot water.
- As it cools, the egg will be pushed into the bottle.
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Explanation
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| When the temperature of the air inside the bottle is changed by putting the fire inside, there is a change in the pressure of the air inside the bottle. Hence when the jar is cooled, there is change in pressure and Hence the egg is pulled inside the jar. |
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