Egg sucked into beaker

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The egg in a bottle demonstration is an easy chemistry or physics demonstration you can do at home or in the lab. You set an egg on top of a bottle as pictured. Air pushes the egg into the bottle. In a chemistry lab , this demonstration is most commonly performed using a ml flask and a medium or large egg. If you are trying this demonstration at home, you can use a glass apple juice bottle. If you use too large of an egg, it will get sucked into the bottle, but stuck resulting in a gooey mess if the egg was soft-boiled.
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Egg Drop and Air Pressure

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Egg in a Bottle Demonstration

Put the jar in a tray the jar may crack in the next stage so this will catch any spillage of hot water. When you add the match or the hot water you cause the air inside to expand, this will push the egg up slightly and some air will escape. As the air then cools down again it starts to shrink, this pulls the egg down and forms a good seal. This means that the air pressure inside the bottle will reduce allowing the air pressure outside to push the egg into the bottle.
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Egg in a Bottle Demonstration

The Egg in a Bottle experiment illustrates the effects of air pressure. Air pressure is manifested in different phenomena, so are its effects. When it comes to weather, air pressure plays a big role too. Most of the changes in a particular place's weather are governed by air pressure. In this experiment, you will learn more about air pressure and its behaviour by putting an egg into a bottle and taking it out again without destroying the egg.
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The egg in a bottle experiment is a scientific classic that will fascinate kids and teach them about heat and air density. When molecules heat up — in the presence of a flame, for example — they tend to move away from each other. Try it out for yourself!
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