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April 14, 2014

How to Make a Rubber Egg Science Experiment

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Have you done the rubber egg science experiment before? It is such a fun one for kids!

You only need a couple supplies to make a rubber egg and the results are so impressive.

How to Make a Rubber Egg Science Experiment for Kids

Rubber Egg Experiment Supplies:

  • cup
  • egg
  • vinegar
  • notebooks to record experiment

Ask the kids to predict what they think will happen if you leave an egg in vinegar and have them record their thoughts in the notebooks.

Egg in Vinegar Science Experiment

We put the egg in a cup and covered it with vinegar. The kids noticed there were bubbles on the shell of the egg immediately.

Rubber Egg Science for Kids

We left it in the vinegar for two nights and continued to watch it. Slowly the shell of the egg disappeared and the egg got bigger. The vinegar dissolves the shell but keep the membranes of the egg intact giving it a rubbery appearance.

Make a Rubber Egg with Vinegar!

The kids thought it was amazing and all took a turn holding it.  It is still an egg though so make sure if you do this with your kids you supervise them and have them properly wash their hands.

Make an Egg Bounce Science Experiment for Kids!

You can even gently bounce the egg on a flat surface!

What Happens to a Rubber Egg When You Drop It

Be careful though. If you bounce it too hard the membrane will break and you’ll have a big mess!

Doing experiments at home is such a great way to get your kids to start thinking like scientists!

More Kitchen Science Experiments for Kids:

  • Does It Dissolve?
  • 10 Science Experiments for Kids
  • Celery Science Experiment
  • Conversation Heart Science
  • Make a Cloud in a Bottle

About Megan Sheakoski

Megan is the creator of Coffee Cups and Crayons, a blog full of simple fun and learning. She believes that kids’ activities don’t have to be complicated to be fun and that learning is better with play.

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Comments

  1. Yanet says

    April 14, 2014 at 12:02 pm

    Wow, that’s really big mess.. 😀 But it’s look fun!!

    Reply
    • Megan Sheakoski says

      April 14, 2014 at 9:16 pm

      Yes! I would not recommend the mess, but the rest was cool! 🙂

      Reply
  2. Amy says

    April 17, 2014 at 10:56 am

    White vinegar or any type?

    Reply
    • Megan Sheakoski says

      April 17, 2014 at 4:46 pm

      I used white but I have heard lemon juice works too!

      Reply
  3. alysia says

    April 17, 2014 at 3:09 pm

    Couldn’t you boil the egg first and do the same thing?

    Reply
    • Megan Sheakoski says

      April 17, 2014 at 4:46 pm

      Probably! If you try it let me know!

      Reply
      • Autumn says

        April 18, 2014 at 2:42 am

        I am going to try boiling it first, but I don’t believe that it will work because the reason the egg has a more rubber look and feel to it is because of the osmosis of the vinegar. I don’t think osmosis works unless it’s a liquid – although I don’t know that for sure. I will try this tomorrow and post our results! 🙂

        Reply
        • Megan Sheakoski says

          April 18, 2014 at 4:22 pm

          I can’t wait to see!

          Reply
  4. Joanne Baehr says

    April 18, 2014 at 9:09 am

    Do you refrigerate for those 2 days?
    BTW thanks for sharing.

    Reply
    • Megan Sheakoski says

      April 18, 2014 at 4:22 pm

      No. And ours didn’t smell at all which I was worried about.

      Reply
  5. Laura @ Lalymom says

    April 18, 2014 at 9:16 am

    Woe I have never seen that before! How crazy! I am glad you showed what happens if you bounce it too hard! Ha, but what a cool experiment!

    Reply
    • Megan Sheakoski says

      April 18, 2014 at 4:23 pm

      Yes! All big bounces should be done outdoors!

      Reply
  6. Ashfaq suleman says

    July 20, 2014 at 10:58 pm

    Awsome thanks

    Reply
  7. natalie wallace says

    October 27, 2014 at 9:41 am

    so much fun but how long does it last… like after its done making?

    Reply
    • Megan Sheakoski says

      October 27, 2014 at 4:35 pm

      It will last days in the vinegar but once you take it out then you won’t want to save it any longer.

      Reply
  8. Katharina Gerlach says

    October 28, 2014 at 4:33 pm

    Would the egg still be edible? I mean if you fry or cook it? Or will it taste of vinegar? That#s probably something worth finding out.

    Reply
    • Megan Sheakoski says

      October 28, 2014 at 4:47 pm

      Hmmmm…I don’t totally know what would happen if you fried it! I’m guessing with all the vinegar (and having sat out for days) that it would be gross, but I don’t actually know! If you try it report back to us!

      Reply
    • Mo says

      May 30, 2015 at 6:59 pm

      I don’t think it would be edible at all if the egg was not refrigerated since you’re not supposed to eat food that’s been left out for more than 4 hours and this was left out for 2 days. If it can be done in a fridge then maybe? Or will it have too much vinegar in it at that point? Curious.

      Reply
  9. Irvine Babysitter says

    March 2, 2015 at 11:46 pm

    And I thought the nail in the glass of Coke experiment was cool. This beat that hands down. Can’t wait to try this one with the kiddos!

    Reply
    • Betsy says

      May 21, 2015 at 7:38 pm

      You are correct that the process going on here is osmosis. The vinegar dissolves the egg shell, but then the vinegar transfers through the skin into the inside of the egg. If you put the vinegar filled egg into a cup of corn syrup, you will find that the vinegar passes out of the egg lining into the corn syrup and the egg sac becomes much smaller, with only the yolk and egg white remaining in the sac. It is a great way to get kids to hypothesize what will happen before each procedure. It also gets them to ask questions to do further experiments. Great fun!

      Reply
      • Megan Sheakoski says

        May 23, 2015 at 4:40 pm

        Very cool! We’ll have to try it!

        Reply
  10. maria says

    May 22, 2015 at 10:23 pm

    No worries if the egg breaks: pour SALT over it and wait, then just gather the dirt very easily

    Reply
    • Megan Sheakoski says

      May 23, 2015 at 4:39 pm

      Awesome! Thanks for the tip!

      Reply
  11. ANIYAH says

    October 11, 2018 at 4:53 pm

    CAN I PUT A LITTLE BIT OF WATER IN THE VINEGAR

    Reply
  12. Mark says

    August 5, 2019 at 1:25 am

    I did this experiment and there was some weird brown stuff floating around in the vinegar… is this normal?

    Reply
    • Megan Sheakoski says

      August 8, 2019 at 2:36 pm

      Yes the shell is disintegrating. 🙂

      Reply
  13. Tyler Moore says

    August 15, 2019 at 12:29 pm

    Thank you so much for sharing this. I am looking forward to doing this for a science project.

    Reply
    • Megan Sheakoski says

      August 16, 2019 at 11:10 am

      It’s so cool!

      Reply

Trackbacks

  1. Free Resources to Teach Backyard Birds for Kids says:
    March 29, 2024 at 3:21 am

    […] (yes, real ones) in a bowl. Then can compare raw eggs and cooked eggs. Let them try this fun rubber egg experiment. They’ll be amazed! I […]

    Reply

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