Naked Egg (Dissolving Egg Shell) Experiment

Simple science experiments for kids: Do you want show naked egg to your kids? Try this fun project by dissolving an eggshell into a glass of vinegar solution.

Try this simple activity which involves absolutely no complication but only fun. And you know what? There is no need to run around to shop for materials because you can find everything from your household items . Trust me, we tried this experiment couple of time in the last 15 days as kids kept on insisting to watch the reactions. Also, my little princess Tisha did not allow the result show and interrupted every time out of curiosity.

Suitable For
There is no wonder as kids cannot resist their temptation and we cannot control them squeezing the soft egg and that too naked. Tisha bumped it twice on the floor and alas we could not retain it for long. This will be a great activity for preschoolers and primary class kids. My elder one Pritika is aged 5.3 yrs and younger one Tisha 2.11 yrs had fun while doing this experiment.

Dissolving the Eggshell from an Egg & Making Transparent Egg

What is required?

[*Product links are affiliate links. Your support is highly appreciated]transparent egg experiment ingredients

  1. Place the egg in the glass jar

Make sure your jar is not heavy and let kids handle them easily. Ask them to place the egg into the glass jar. Ensure it does not break and provide help to kids. Preferably use a wide-mouthed glass so that easily hands can go inside. Also, there will be rooms for the egg to swell.

  1. Mix Vinegar Solution

    Now, take vinegar and transfer that to the jar until it covers the entire egg. Finally, add few more drops to make sure that eggs are floating. Initially, the egg will float when it is fresh and then sink.

naked egg experiment pouring vinegar to egg

3. Observation!

egg in vinegar experiment

The fun begins quickly after adding the vinegar to the jar and you can witness minute bubble formation on outer layer of the egg. This is due to the release of CO2 (carbon dioxide). Imagine the fizzy sound when opening any aerated juice. This is similar to that chemical reaction which happens n the jar.

egg shell dissolving in vinegar

  1. Close the jar and keep it aside for a maximum of 7 days

Osmosis takes places making the egg to swell and also the color of the eggshell fades from brown. A scummy layer is formed on the surface and it is good to change the Vinegar solution when you witness this layer formation. However, it is optional and does not bother if you forgot to do it or just don’t have time.

  1. It’s time to empty the vinegar from the jar and take the egg outside. Wash off the residual eggshell.

Wow! You can see the naked egg without eggshell. It is now soft like a sponge and light in weight. In case, the eggshells are hard to remove, then don’t panic it needs more days and some more vinegar. So wait with patience to enjoy watching and touching the naked egg soft as a sponge.  🙂

These are cool to look at and also you can find the intact membrane inside. It feels rubbery to touch and squeezing them gently adds fun. It is now possible to see through the lucid egg which contains the yolk. Also, they are seen floating on the top.

Replace your rubber ball with this shell-less egg and dropping from a height of one inch is safe. Yes, it bounces. Be prepared to clean the mess as well. It might turn out to be a mess if you mishandle or kids put more pressure out of excitement. A semi-naked egg, that just needs the shell to be washed away

Science of Egg Shell Disappearing in Vinegar Solution

The reaction between an acid solution and a base can be demonstrated using this activity. The acetic acid present in vinegar reacts with the shell which is nothing but calcium carbonate. Therefore vinegar is acidic and eggshell is the base.

The reaction between acetic acid + calcium carbonate forms a compound that is soluble in water and named as calcium acetate. Along with this CO2 is released. Thus the eggshell gets dissolved and the inner membrane remains unaltered giving an appearance of an exposed egg.

Slowly add vinegar solution to the glass jar with egg to see the reaction. The appearance of CO2 begins and seen small bubbles.

Tisha could not understand the science but activity took part in the experiment. She is too small for the explanation part. She expressed interest to carefully take an egg from the refrigerator and drop in the glass jar. Then she added vinegar to the egg in the jar and closed the jar with the lid. She enjoyed watching the bubbles. She counted days and waited to take the egg out of the jar and wash to remove the residual shells. She was amazed at the texture of the egg and ready for a camera shoot. I am glad she is so involved but at the cost of breaking some eggs. Still, she enjoyed.

Therefore, we discussed the texture of the egg from the beginning of the experiment (hard) until the end (spongy). All the time during the discussion Tisha was busy meddling with the egg squeezing softly and bouncing on the floor.

However, Pritika being elder started asking questions of how and that led to learning a bit of chemistry and chemical reactions. Though she is not old enough to understand reactions but certainly gained knowledge about the science involved in this experiment. She got an idea about elements, molecule, etc. She now knows that elements make up the molecules and the entire world has elements in it.

We then discussed molecules, acids, base, and reactions. Also, she understood that lemon contains citric acid. Out stomach has some acids to digest food etc. Also, she understood that acid reacting with the base like baking soda will make a fizzy sound. She knows the uses of baking soda because of our “making of Anzac Biscuits” experiment. We also did the erupting volcano experiment a month ago which helped her to understand this one easier.

But today she saw vinegar reacting with a base other than baking soda and understood the chemical reaction. During the entire process, I explained to her about vinegar, its properties, and eggshell properties, etc. Also, told her how CO2 bubbles escaped, etc. This is my small initiative to expand her knowledge with practical experiments.

Naked Egg (dissolving egg shell) experiment

Please note…

Do not view the activity as edible. As we have used vinegar to dissolve eggshell formation bacteria will not be a cause for concern. Egg absorbs the vinegar and this process is osmosis. However, we advise you to not use this egg in cooking.

Make sure that kids are not just supported with required materials to conduct the experiments posted on this site but also monitored and guided. Do not allow kids to do the experiment which you think is hazardous when compared to the kid’s maturity and age. Read more here for instructions.

If you are interested in more dissolving egg experiments, refer to the below links: 

Or if you are just looking for a science project for upcoming easter, here are some: 

Create your own Easter Egg shaped bubble wands (identify what shape bubbles will come out )

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Easter Egg Bubble Wands

Let us explore a fun science project for Easter with kids. We will make Easter egg bubble wands to observe the bubble’s shape. Also, to teach some science to little kids.


Easter Egg Bubble Wands and Cool Bubble Science

Easter is coming closer and Happy Easter to all readers!

This time during Easter my elder daughter Pritika 5.5 years old came with an interest of making Easter egg bubble wands. She already knows to make bubble wands but insisted on making a DIY Easter egg type. She was keen to know if they will blow into an Easter egg-shaped bubbles. I was excited about her thoughts.

We then decided to try this DIY and found to have all the materials required to do at our kitchen itself. I wanted to make 2 as my younger one Tisha also can have fun. Trust me it is so simple and you can make many to distribute to kids around your place.

There are affiliate links* in this post and check them to purchase materials if you require (Appreciate your support).  

 

Easter Egg Bubble Wands Making Steps

Things required

    • yellow packing tape
    • scissors
    • chopsticks
    • Chenille Stems – 3 x 6mm furry pipe cleaners – You can choose different colors and we used Yellow, orange and navy
    • bubble mix

Materials to make easter egg bubble wands

Using two pipe cleaners I made a loop twisted to make them as rough ovals and left about two inches at the edges. Later on, made each oval sit on the chopstick’s end to wound them tightly with the pipe cleaner ends. This will now form the handle.

Twist Pipe Cleaners onto chopsticks

With the 3rd pipe cleaner, I cut them into quarters and bent them into a crisscross pattern. By twisting the zigzag ends I attached them to the oval to make it look like an Easter egg shape.

Twist pipe cleaner quarters to create a zigzag pattern

Finally, I included a tape around their handles to make sure pipe cleaners are in place. But this is optional.

Add tape to secure the pipecleaners to the chopstick

In fact, we have tried making it without using the tapes and it worked well. You can ensure more softness when kids use it by wrapping the tape on the chopsticks. Your Easter Egg bubble wand will be ready now. You can dip the pipe cleaner side in the bubble mix to blow and have fun.

Easter egg bubble wands and bubble science

Did you blow them? How did it work? Did you see Easter egg-shaped bubbles?

We leave it to you to check and see its working

Blowing Easter egg bubbles

Fun Bubble Science Facts

Bubble mix is a mixture of water and soap. Mixing soap to the water will weaken the surface tension of water and forms a thin film. It is flexible and best suited to make bubbles.

Soapy water with air trapped inside forms bubbles and the science behind here can be looked at with two forces that occur here. One is the air within the bubble that pushes out and the soapy film pushes in. For balancing these two forces, the soapy film will assume the smallest surface area. This shape will be a sphere. Hence bubbles floating in the air looks round irrespective of the bubble wand shape used.

Playing with DIY Easter Egg Bubble Wands

As mentioned I have already tried this and hence Pritika is aware of the trick and she understood the bubble shape does not depend on the wand’s shape. It will always remain round. However, she was surprised to see three times more and smaller bubbles would emerge from our Easter egg bubble wands.

I did not explain detailed physics and chemistry concepts but the basics and allowed her to enjoy. You can try with different variables and test for results.

EDIT: You can check for other bubble wands too by clicking the link given below

 Check this one for Easter science projects and have fun.

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Easter Egg Bubble Wands and Bubble Science

* This post does have some affiliate links. An affiliate link means that when you purchase using the link provided in this page, I would get a small referral fees without any extra cost to you. I high appreciate your understanding and support.