This process also “pickles” the egg, by hardening it up. Once the shell is gone, the vinegar will cross over the semi-permeable membrane (through a process called “osmosis”) and slightly inflate the egg. The little bubbles you see in the water are made of carbon dioxide gas just like the bubbles from your vinegar and baking soda volcano. The shell is made of the same “carbonate” and will react like soda, only much less extreme. You all know when you mix vinegar and baking soda what a strong reaction you get. That’s a complex arrangement of carbons, calcium, and oxygen. The possibilities are endless.Ī chicken’s egg is covered in a shell that is made of calcium carbonate. Place it back in the egg tray for some hilarity. You now have a cool creation that can astound your friends and family.Test out your new creation in the sink by dropping it from a few inches and then some more.You should notice it feels slightly different than when you started… most noticeably it is missing the shell and has a weird rubbery feel to it.At the end of this time, rinse off the egg and pick it up.That’s a long time but do it you don’t want a half pickled egg in your hands. Rinse the vinegar and foam out with water and then cover the egg again with vinegar.When it seems to have slowed, move on to the next step. Make some observations! You should notice a lot of foam and bubbles. Put the glass aside so no one drinks and/or spills it.Pour vinegar into the glass until the egg is covered.Put your egg into a tall drinking glass.Materials:Īn egg (either cooked or raw… however brave you’re feeling), a tall drinking glass, white vinegar. So what can we do with an egg that is science-like and fun? Why, dissolve the shell with a mild acid and turn the innards to a rubbery substance, of course. The answer is, of course, an egg the largest cell in the world. “A box without hinges, key or lid, yet golden treasure inside is hid.” This is perhaps my favorite riddle from “The Hobbit” by J.R.R.
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