Tricks are not just about sleight of hand and mathematical calculations. There are some amazing things that magicians do based on world-known physical laws. But while performing such tricks, naturally, the viewer does not even remember the laws that everyone learned in school.
Boiled egg and bottle trick
A trick that clearly shows how to insert a raw egg in a bottle - confirmation of these words. To perform the trick, you need to take a container with a wide neck, but not larger diameter eggs. Also, to perform the trick you will need matches and paper - that’s all the props. There are two options for showing the trick, and we'll look at both now.
In the first method, you need to use boiled, peeled. Once all the props are in front of you, take matches and paper. Light the paper and place it into the bottle through the neck. Then, quickly cover the neck with the peeled egg, and for greater effect, begin to make various movements with your hands over it. Gradually, it will be absorbed into itself, and the audience will think that your hand energy contributed to this.
In reality, of course, there is no hand energy in this trick, and the movements performed are only a distracting maneuver. The laws of physics do all the magic for you. The fact is that when air burns, it expands and when it cools, it contracts. When you throw a burning object into a bottle, you expand the air inside it. By covering its neck with an egg, you extinguish the fire, since it cannot exist without oxygen. Thus, there is expanded air in the bottle, and normal air outside it. There is a difference in the pressure exerted on the egg, and the internal space of the bottle itself sucks it in. That's the whole secret of the trick.
Important! It is extremely important, after throwing a bottle of burning paper inside, to quickly plug the neck of the container with an egg. If this is not done at the right time, the expanded air will quickly evaporate and no further effect will occur.
Trick with raw egg and bottle
Let's now look at how to put a whole egg in a bottle without boiling it. This version of the trick is a little more complicated, but its effect is much better. 
For display you will need an unpeeled raw egg, vinegar and a glass bottle. Before presentation, place it in a container with vinegar and leave it for 12 hours. After this period has expired, take it out and make sure that it has become plastic, as if made of rubber. Immediately begin demonstrating the trick. Lightly push the egg into the bottle and begin making passes with your hands. Gradually, it will completely go into it and surprise the audience with your abilities.
Important! In this variation of the focus, hand movements are required, and the stronger they are, the better. The fact is that the trick will only work if you can dry the egg located in the neck of the bottle. To do this, wave your arms and blow cooling air onto it.
The science
Did you know that an egg is made up mostly of water?
Try an experiment with your children in which an egg shell will disappear in vinegar.
Besides? there are many more experiments that can be done with a chicken egg.
Experiments for children
1. Rubber egg (without shell).
You will need vinegar and 24 to 48 hours for the experiment.
Video experience for children
2. Flatten the egg and return it to its original shape.
If you repeat the first experiment with vinegar and then dip the egg in corn syrup, the egg will turn into a deflated ball. If you then immerse the egg in water and wait for some time (about 24 hours), it will “inflate” and return to its shape.
You will need:
Corn syrup
Egg container
Large spoon (to hold the egg in the container under the syrup)
Children's experiences
3. How to put an egg in a bottle?
You will need:
Hard boiled egg
Bottle
Matches or lighter
Scissors
1. Cut a strip of paper (20 x 2.5 cm).
2. Carefully light the strip at one end and drop it into the bottle.
3. Place a hard-boiled egg on the neck of the bottle.
4. Watch as the paper goes out on its own and the egg falls into the bottle.
How to get an egg out of a bottle?
Just blow hard into the bottle and the egg will pop out.
Home experiments for children
4. The egg is floating.
You will need:
2 cans or glasses
5 teaspoons salt
1. Pour water into one jar.
2. Pour warm water into the second jar and add salt. Stir.
3. Carefully place one egg into each jar.
4. Watch - one egg will remain afloat, and the other will sink to the bottom.
Experiments for children
5. How to make a glowing egg
You will need:
Marker for highlighting text
2 empty containers
UV lamp.
1. First c make a rubber egg (see experiment 1), only add paint squeezed out of a marker to the vinegar.
2. Wait 24 hours, remove the egg, turn off the light and shine the ultraviolet light on the egg.
Home experiments for children
6. Colored volcano.
You will need:
Baking soda
Egg dye or food coloring
Tassels.
1. Mix baking soda and food coloring in a ratio of 2 to 1. If the paint seems to you not too bright, add a little more dye. Stir to form a thin paste.
2. Using brushes, paint the eggs with a thick layer of paste.
This experience is extremely simple, but at the same time very educational for children and can greatly amuse adults. Place a burning candle at the bottom of a wide-necked bottle and let it sit for a while so that the air inside the bottle warms up well. Then place a peeled boiled egg on the neck of the bottle and observe.
1. To ensure a successful experiment, it is better to prepare the egg well. Try not to overcook it. Hold the boiled egg in cold water: after removing the shell, the white should be smooth so that it fits tightly to the neck of the bottle without letting air in. Dip the peeled egg into water. A wet (and slippery) egg is more likely to fit into the bottle than a dry one.
2. Pick up a bottle in the store whose neck diameter approximately corresponds to the diameter of the egg. Bottles of fermented milk products, juices, and ketchup are suitable. However, you shouldn’t be too zealous: the vacuum creates enough force to greatly deform the egg and pull it through even a narrow neck.
3. Getting a lit candle down to the bottom of a bottle can be tricky. This is easier to do by sticking a piece of wire or a knitting needle directly into the paraffin to use as a handle.
First of all, the bottle will run out of oxygen necessary for combustion, and the candle will go out. The air inside will begin to cool and, accordingly, decrease in volume. The pressure in the vessel will become less than atmospheric, and the egg will slowly and at the same time confidently be drawn into the bottle. You will be surprised how reliable this experiment is and how strongly the vacuum formed in the bottle is capable of compressing the egg.
For the most inquisitive researchers, we offer an additional task: figure out how to get an egg out of a bottle.
Many tricks are based on the laws of physics. And you can find out how to put an egg in a bottle by resorting to them. To perform such a “miracle”, you will need a large bottle with a wide neck. But its diameter should be smaller than the diameter of your “pushed” object. A small egg will not work for the trick. Or you need to look for a bottle with an even smaller neck diameter, but it will be more difficult to perform the trick. Among other things, put matches and paper nearby - they will come in handy when performing this trick.
The challenge is to figure out how to get an egg into a bottle without any effort. That is, it is impossible to influence objects with any parts of the body. First you need to boil the egg and peel it. After this, light the paper prepared in advance with matches and, when it gets hot enough, throw it into the bottle. Keep the egg “ready” at the same time, and as soon as the paper is inside, immediately close the neck of the bottle with it (by the way, it is not necessary to set the paper on fire, you can just throw matches into the container - five of them will be enough). Gradually the egg will begin to be “sucked” into the bottle, and after a few seconds it will be inside.
The solution to this trick and the answer to the question of how to put an egg in a bottle are very simple. The whole point is that, as is known from school course physics, air expands when heated, and when cooled, on the contrary, it contracts. When a burning object, be it matches or paper, gets into a bottle, the air inside it becomes more voluminous. As soon as we place an egg on the neck of the bottle, the access to oxygen is thus blocked, which helps stop the combustion process. As a result, the air cools down and immediately begins to compress, creating a pressure difference between the air in the container and that located outside it. And thanks to this, the egg is “sucked” inside.
There is also another solution to this trick, which allows you to find out how to put an egg in a bottle. This method is more complicated than the previous one, but also more interesting. So, to carry out this experiment you will need, of course, yourself egg. This time there is no need to cook it, this method allows you to place the uncleaned food inside the container. You will also need a glass bottle. The diameter of its neck, as in the previous trick, should be less than the diameter of the egg. By the way, the egg can be anything, but to simplify the experiment, it is better that it be smaller, taken from a young chicken. Prepare vinegar as well.
The trick will be preceded by placing the egg in some deep container (bowl, etc.). You won't need the bottle yet. After you put the egg in a bowl, pour vinegar over it and leave it like that for twelve hours. After this time, you can get it. Wash off all the excess components from it, and you will see that it has become like rubber. Then carefully push the egg into the bottle and let it dry (by the way, this is extremely difficult to do, and you need to put maximum effort into it). Ready! The egg is inside, you can celebrate your victory!
Good luck with your experiments!