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November 12, 2018 by Jenae - 12 Comments
This post contains affiliate links. Please see my disclosure policy.

Bouncy Egg Experiment

bouncy egg experiment

Bouncy Egg Experiment

Have you ever seen a raw egg bounce? How about seeing the yolk of an egg while looking at it from the outside?

No, you don’t need x-ray vision or superpowers… You just need to try out this fascinating Naked Egg science experiment! The idea for this experiment came from Steve Spangler Science (two awesome resources).

A word of warning:  Patience is the name of the game with the Bouncy Egg experiment. Your child will have to wait at least 3 days before getting to “bounce” their egg.

How To Make A Bouncy Egg

Here’s what you’ll need:  

  • a glass jar
  • raw white egg
  • white vinegar

Step By Step Instructions:

bouncy egg

STEP 1.  Carefully place a raw egg in a glass jar. Pour enough vinegar in the jar to cover the egg. Let your child watch what happens as you add the vinegar… tiny bubbles will cover the surface of the egg! Let the egg sit in the vinegar for 24 hours.

 

bouncy egg in vinegar

 STEP 2.  After 24 hours, carefully dump the vinegar out (it might help to remove the egg from the jar first). After the vinegar has been dumped, place the egg back in the jar and add some “fresh” vinegar…

 

rubber egg experiment

STEP 3. Let the egg in vinegar sit for 2 more days.

 

bouncy egg

 STEP 4.  Pour the remaining vinegar out of the jar and remove the egg.

The egg gets significantly larger sitting in all that vinegar, so it might be more difficult to get out of the jar!

 

 STEP 5.  Let your child hold the egg and observe and talk about what they see. Since the vinegar has dissolved the egg shell, the egg yolk can be seen from the outside!

 

bounce the naked egg on the table gently.

STEP 6.  Gently bounce the egg on a table (no more than 6 inches from the table) and let it roll. Observe and talk about what happens with your child.

 

 Just be careful… Even though it bounces, your shelless egg can still break! We learned that lesson after our bouncy (and slippery) egg fell off our patio table and onto the deck.

 

Why does vinegar dissolve the egg shell?

The shell of an egg is made of calcium carbonate. When you place the egg into the vinegar, you see bubbles, which is the chemical reaction of the acid in the vinegar reacting with the calcium carbonate to produce carbon dioxide. You’ll also notice that the egg gets larger as it sits in the vinegar. That is because some of the vinegar is absorbed in the egg through its semi-permeable membrane!

This post was first published May 2012. Updated 2018.

Get instructions for the Bouncy Egg Experiment and 14 other fun and easy science activities below.

Click on the link (below) and receive your FREE Science eBook.

Find More Cool Science Experiments:

  • How To Make A Homemade Lava Lamp
  • Ice Cream In A Bag
  • Making It Rain: Cloud In A Jar
  • Oobleck: Liquid or Solid?
  • Gross Science Experiments for Kids

 

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Reader Interactions

Comments

  1. School Sparks Renee says

    May 29, 2012 at 11:08 am

    Great experiment with little ones and fun pictures! Thanks, Renee

    Reply
  2. Anonymous says

    May 29, 2012 at 11:52 am

    Hi, your blog really touches me, have been reading it for awhile… Just wanted you to know about a website i started ReadYourBiblesChurch.com… It’s a place for Bible study guides.. I also put a forum in that can be viewed from a mobile device.. I couldn’t find where to contact you privately so I’m commenting, hope that is okay. :) God Bless!
    Jenn.

    Reply
  3. Sonya says

    May 29, 2012 at 11:32 pm

    I’m a little confused by “The Science Behind It.” It mentions baking soda, but the experiment doesn’t. Did I miss something?

    Reply
    • Jenae says

      May 30, 2012 at 7:15 am

      Oops!! That was a typo! Thanks for catching it. It should say vinegar. :)

      Reply
      • AUTUMN SULLIVAN says

        April 26, 2013 at 4:36 pm

        so i am doing a school project and i need help i need your last name and your last name and your middle name thank u

        Reply
  4. Kristen @ Celebrate Every Day With Me says

    May 30, 2012 at 3:48 pm

    Can’t wait to try this! I have no doubt ours will end up broken on the deck too. :)

    Reply
  5. Mariah says

    January 9, 2013 at 5:04 pm

    Why does the egg get slimy?

    Reply
  6. Jenn Langsdale says

    February 2, 2016 at 9:14 pm

    I know this post is a few years old, but I’ve had it on my to-do list for a while, tried it today, and love it! I featured it on my post today – why and how to make a science journal at home! http://www.smartcookiela.com/blog/2016/2/2/sciencejournal
    I love easy, fun engaging experiments like this that families can do to bring the joy back to learning experiences! :)

    Reply
  7. run 3 says

    November 20, 2018 at 10:38 am

    I couldn’t find where to contact you privately so I’m commenting, hope that is okay. :) God Bless!
    Jenn.

    Reply
  8. Daniel says

    November 26, 2018 at 8:53 pm

    I love doing bouncy eggs i’ve done more than 29 experiments and they have been a great success try coolscienceexperimentshq.com/bouncy-egg/ or wikihow.com/Make-a-Bouncy-Egg it also works but I feel like this website works better.

    Reply
  9. Nicole says

    July 27, 2019 at 11:01 pm

    So, this may be an odd question, but what do you do with the egg afterwards? Just throw it out or….?

    Reply
    • Jenae says

      July 29, 2019 at 4:26 pm

      I think I let my boys squish it until it popped! But yes, we ended up just putting it down the garbage disposal after our experiment.

      Reply

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