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General Chemistry Science Fair Project

Egg with Vinegar

Egg with Vinegar | Science Fair Projects | STEM Projects
In this fun bouncy egg experiment, you can see the amazing changes when a raw egg is placed in vinegar for a few days. Watch what happens to the shell and feel the rubbery egg! Learn about acid and base chemical reactions and protein denaturation!


The hypothesis is that the vinegar (acid) will react with the calcium carbonate (base) in the egg shell, and the vinegar reacts with the proteins in the raw egg.

Method & Materials

You will place a raw egg into a jar and pour enough vinegar to cover the egg. Also place an egg in another jar and pour enough water in the jar to cover the egg. After 2-3 days, you will check the eggs.
You will need two eggs, vinegar, water and two jars that are large enough to hold the egg.


The experiment showed that the acidic vinegar dissolved the egg shell, which is made up of basic calcium carbonate. The egg placed in water did not dissolve. The most interesting observation was that the egg became rubbery! The acidic vinegar changed (denatured) the proteins in the egg white to make it rubbery.

Why do this project?

This science project is fascinating because it demonstrates the chemical reaction between an acid and a base and shows how the acid can transform the egg's protein, making it rubbery.

Also Consider

Variations of this experiment could include testing different acids, such as lemon juice or orange juice, boiling the egg before adding it to the vinegar or adding baking soda to the vinegar before adding the egg.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!

Related videos

Hey there! Here are some awesome videos about this science project that we think you'll really like. They're not only super fun, but they'll also help you learn more about the science behind the project. So sit back, relax, and get ready to have some fun!!
Be prepared for a surprise when a raw egg soaks in vinegar! Discover the science behind this surprising chemistry experiment!
Add another variation to the rubbery egg experiment by adding a hard boiled egg to vinegar! What do you think will happen? Follow along with this video from the New Mexico Museum of Space History!
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