Naked Egg

By | February 7, 2013
Naked Egg Experiment

We have been trying to do more science experiments, because they are fun and we can usually learn something too.  This week I wanted to try out the Naked Egg Experiment.  It is cool in a few different ways.  First it just looks really cool, second the fact that the shell dissolves off is neat, and third it feels like a rubber ball.

The girls had so much fun with this one, they did “pop” one of the eggs but it cleaned up pretty easy so no big deal.

What is happening with this experiment? The egg shell is made of Calcium.  Vinegar is an acetic acid which will break down the calcium of the egg shell.  The first thing you will see in the experiment is the appearance of bubbles around your egg.  This is Carbon Dioxide caused from the breakdown of the egg shell. Once the shell is gone you will see that the membrane is holding the egg together and it is rubbery feeling and translucent (which means almost see through).

Not only can you teach the kids a little science with this one but they will have fun.

Check out our SCIENCE board on Pintrest for more Experiments!

Supplies

Raw Egg
Vinegar

Directions

Put your egg or eggs into a container and cover them with Vinegar. (Make sure the entire egg is covered with vinegar).
Put your container in the fridge for 48 hours.   This is how your eggs will look after a few hours.  The bubbles are Carbon Dioxide.
  After 48 hours rinse off your egg (there will be a residue from the shell but it will rinse right off).

Then let the kids check out the Naked Egg.  It is rubbery and will bounce.

 My little one thought it was funny to roll it at me while I was taking pictures.  Freaked me out since they will pop.

Don’t bounce them too hard or SPLAT you will have an egg mess (no worries it cleans up quick).  This did give the girls an opportunity to see the membrane that was covering the egg (that is the white part on the table)
We still had one left to play with!
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50 thoughts on “Naked Egg

  1. DGMommy Tamara

    That last pic is priceless!!! My kids are going to love this experiment; thanks for sharing it!
    Found you through Nanny to Mommy’s hop! Happy Thursday!

    Reply
  2. MyJourneyBack

    Really cool experiment. I’ll have to share this with my DIL.
    Thanks for sharing. It was nice to meet you I came by from Katherine’s Corner.
    It was nice to meet you.
    Have a wonderful day,
    Sherry

    Reply
  3. Laurie@SimplyCreatingHome

    What a fun and creative learning project! I love the pictures of your girls exploring the properties of the egg. Too cute! I’m visiting from Pin Me party and I’ll be pinning.

    Reply
  4. Sharon

    Cool! Never heard of this before. Makes me wish my kids were little and we were doing homeschool!

    I’m visiting through Inspire Me Monday.

    Reply
  5. Jessica @ A Humble Creation

    Thanks Tracey! I remember doing this experiment as a kid but had kinda forgotten about it until I saw this post. I’m going to try with my kids. Thanks for linking up at A Humble Creation!

    Reply
  6. Tulip TrueAim

    I definitely need to try this. I love the pictures that you got of this experiment. It is so interesting! Stopping by from I should be mopping. Hope to see you at True Aim!

    Reply
  7. tumbleweed-contessa

    This is just too cool. I have to let my granddaughters try this! Thanks for sharing on What’d You Do This Weekend?

    Have a great week! The Contessa (Linda)

    Reply
  8. Sandie

    Hi, you learn something new every day and this will be a great experiment with my grandchildren. One question I have though, as the vinegar is acetic acid and breaks down the calcium, does that mean it has the same effect on our bodies?

    Reply
  9. Fred Prince

    Take one of the ‘rubbery’ eggs and place it into a glass of tap water.

    Take another egg and place it into a glass of very sugary water.

    Place them into a container for a day or two, and see what happens.

    Then look up ‘osmosis’ on the internet.

    It’s a fun and very old science trick, It’s also why you can stiffen by immersing celery in cold water.

    Reply
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  11. Brittany

    Hi! Just a quick question, can you pop the egg to scramble it? Just wondering if it will taste like vinegar…

    Reply
    1. wemadethat Post author

      Hi Brittany, I have to be honest we did not try it. But after sitting in the vinegar I would assume it would have a slight vinegar taste to it. However it can not hurt you to try it, if you do please let us know what you find out!

      Reply
  12. Connie

    This is sooo cool! I’m definitely going to have to try this with my daughter :D

    Thanks for sharing!

    Reply
  13. Rhonda Welch

    I love these experiments. I will be using them in my school day!
    I have an awesome way to clean up all those messes and know that you are leaving a clean surface behind. Check out my website for more. There is an experiment on my blog Check out the Tennessee video.

    Reply
  14. Azuka

    This seems like a wonderful experiment, but I think it can be taken to ‘the next level.’ Here’s a great chance for a teachable moment.

    Get not only white eggs but also brown eggs. I’m thinking that this would be great in a classroom with mixed races. Each child gets an egg that somewhat matches their skin color. Then they dissolve the eggshells which will result (I hope) in eggs that are indistinguishable from each other.

    The lesson, of course, is that underneath the skin we are ALL the same.

    Reply
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