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Disappearing Eggshell

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Supplies
  • Uncooked Egg
  • Vinegar
  • Cup
Instructions:
  1. Carefully place your uncooked egg into a cup.
  2. Add vinegar so your whole egg is covered.
  3. Put the cup in a safe spot and wait overnight.
  4. Check your egg the next morning, and take a look at the shell! What happened to it?
  5. Carefully remove your egg from the cup and gently wash off any remaining eggshell with water.

The Science Behind the Disappearing Egg Shell

Eggshells contain calcium carbonate, which reacts with the acid in the vinegar. The acid breaks up the calcium, and as it floats away, the carbonate reacts with the acid. The bubbles you see all over your egg is carbon dioxide created by this reaction.

What other liquids do you think could remove an egg shell?


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The Virginia Discovery Museum is a vital nonprofit community resource, but we will be closed through at least July 31 due to the COVID-19 pandemic. Please consider a donation to support us during this uncertain time. Donate Now