How to get an egg in a bottle: Procedure
- Light up the sheet of paper and carefully (but quickly) drop it inside the glass bottle.
- Carefully place the hard boiled egg on the mouth of the glass bottle.
- Allow the burning sheet of paper to die off itself.
- Watch as the egg squeeze it’s way into the bottle.
That wasn’t hard was it? Now let’s look at the science behind the experiment.
Egg in a bottle explanation.
How did the egg on the bottle end up inside the bottle? What’s the science behind the experiment?
Let’s analyze the experiment scientifically and see for ourselves.
Why glass bottle?
Glass bottle can absorb heat and not burn out compared to other materials. So it’s important that you use a glass bottle.
The bottle would usually contain some air when you dropped the burning sheet of paper into it. This air molecule would eventually gain more kinetic energy and as a result they would be able to move more freely.
The egg placed on the bottle mouth would allow small fraction of the heated air to escape from the bottle. The escape of some of the air molecule will result into lesser air in the bottle right?
So when the burning sheet of paper dies off… There would be a need for air to enter the bottle and fill up the partial vacuum inside the bottle.
For this to occur, the incoming air from the atmosphere, would exert huge amount of pressure on the egg blocking it’s passage into the bottle and as a result; it would forcefully push the egg inside the bottle.
That’s the science of how to get an egg into a bottle….
Getting out the egg in the bottle:
Now that we’ve completed the experiment; it’s time to get our precious egg out of the bottle. How do we do that without breaking the bottle?
This can be done using the same principle that we used in getting the egg into the bottle initially.
All you have to do in increase the volume of atmospheric air inside the bottle by placing your mouth over the top of the bottle and forcefully blow some air into the bottle.
You can now carefully turn the bottle upside down to remove the egg gently.
Since the major aim of the experiment is to increase the kinetic energy of the air particles inside the bottle by heating it up so that they can escape; then there are other means of achieving that without the use of sheet of paper and lighter.
You can also get an egg in a bottle using the hot water method, and here is how it’s done.
- Get yourself a glass bottle and boil a clean water to 100 Degree celcius
- Carefully pour the water into the glass bottle; about half way through
- The place the hard boiled egg (with the shell removed) on the bottle top
- Watch as the egg squeezes it’s way into the bottle.
You should be careful when dealing with hot water; adult supervision is very important here.
When you’re about to remove the egg, the first step is to pour out the hot water before blowing some air into the bottle.
Remember you’re dealing with hot water and it WOULD hurt your skin if it touches it.
Video: How to get an Egg In A Bottle Using Hot Water.
Were you able to pull the experiment off? Did you face any challenges while completing the experiment? If you’ve got other interest science experiment as regards egg, air and pressure, feel free to make use of the comment box.
Just before you move on; check out the cool egg float test experiment.