J-Stace the Science Ace Makes A Naked Egg

Join Jonathan every day at 9:20am on QC Morning for a new science lesson!

Did you know you can dissolve the hard shell of an egg, if you have some time and vinegar to spare?

 

Ingredients & Supplies:

  • 1 raw egg
  • Large glass
  • Vinegar

Instructions:

  1. Put the egg into the glass.
  2. Pour vinegar into the glass until it completely covers the egg.
  3. Have a look closely at the surface of the eggshell.  You should see it start to be covered in tiny bubbles.
  4. Leave the glass, vinegar and egg overnight where it won’t be touched.
  5. After about 24 hours has passed, check the egg again. The shell will have started to dissolve.

 

The Science Behind the Experiment

Eggshells are made of calcium carbonate and vinegar contains acetic acid. The acid reacts with the calcium carbonate and makes calcium acetate plus water and carbon dioxide. This reaction eats through the shell leaving behind a “naked” egg.

Today’s science phrase is: Carbon Dioxide – a colorless, odorless gas produced by burning carbon and organic compounds and by respiration

 

Source: fizzicseducation.com.au/150-science-experiments/kitchen-chemistry-experiments/create-a-naked-egg/