Science Experiments With Eggs!

Introduction: Science Experiments With Eggs!

This instructable will show some fun experiments you can do with eggs!!

Table of Contents:
Steps 1 and 2)How to squeeze an egg without breaking it
Steps 3 and 4)How to tell if an egg is raw or cooked
Step 5 )The floating egg!
Step 6)Getting an egg in and out of a bottle

What you need:
-a few eggs
-a bottle
-two containers to hold water

Step 1: Squeezing an Egg Without Breaking It

Most people think eggs are fragile and easy to break, but think again.

An eggs unique shape actually allows weight and pressure applied to it to be distributed evenly.

It is also shaped almost like an arch and this transfers pressure down throughout the entire egg so it does not break.

Now if you are brave enough you can go on to the next step....

Step 2: Squeezing the Egg...

Place the egg in your palm. Then with your thumb and forefinger squeeze the egg vertically (like in the first picture). Good luck!

If you followed the directions correctly then you are clean! Good job you have completed the first challenge succesfully! If you are covered in egg then read the directions more carefully next time.

Now put the egg in your hand again. Close your hand so that your fingers are completely wrapped around the egg and squeeze the egg with even pressure on all parts.

Good job, you succesfully did what you previously thought was impossible and you have vanquished your fears of broken eggs!

Step 3: How to Tell If an Egg Is Cooked

Say you go to the park on a picnic with your girlfriend. You take out your food and then you arrive on the eggs. You don't remember if you cooked them or not because you were in a rush, so what do you do?
This amazing experiment will show you!
You spin the egg and if it spins well it is hardbroiled so eat away. However, if the egg is raw it will spin wobbly and then I suggest you chuck it into some nearby bushes.

If you want to know why this works then go on to the next step...

Step 4: Why This Works...

This works because if the egg is raw then there is liquid sloshing around inside which causes its center of gravity to change.
If the egg is hardbroiled though then the center of gravity stays the same due to the fact that the inside is solid.

Step 5: Floating Eggs!

In this experiment you will learn how to make an egg either float, sink, or hover in the middle of a jar!

First fill one of your containers with plain water and put an egg in it. What happened?

The reason it sunk was because water is not dense enough to hold the egg up (keep it floating).

Now make salt water by adding about 4 tablespoons of salt in about 2 cups of water. Put this salt water in your other container. Then put the egg in that container... The reason it floats this time is because the water is dense and therefore it can keep the egg on the surface.

Now to get the egg to float in the middle fill a container half way with salt water. Now pour regular water down the sides of the glass to ensure the liquids don't mix. Once the liquids are in the container drop the egg in. Notice how it drops through the water and then stops when it reaches the salt water. This is due to the different densities I discussed earlier.

Step 6: Getting an Egg in a Bottle

This trick will show you how to get a hardboiled egg into a bottle.

First you need to get a bottle, a hardboiled egg that is just bigger then the bottle opening, matches, and a strip of paper.
The first step is to wet the bottle rim.
Then light the paper on fire put it in the bottle and put the egg on the opening of the bottle. 
The egg should start wiggling around and then it should get sucked in!

The reason that this works is because when the fire is in the bottle it heats up the molecules so they move around a lot. This makes the air want to escape because it expands and so it does (which is why the egg wiggles). Then the molecules start cooling down and normally air would get sucked in (because of the air that went out when it was hot) but the egg is in the way so the bottle just sucks the egg in!

Thanks for reading my instructable! I hope you have fun with these tricks!

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    3 Discussions

    Oh im sorry this was just my first instructable I will change the pictures if I can...


    9 years ago on Introduction

    Some classic eggsperiments, but I'm disappointed you didn't use your own photos.


    9 years ago on Introduction

    So did you take these pictures? If not, did you get the picture owners' expressed permission to post it here and credit these owners?