This egg experiment is awesome. It magically transforms an ordinary egg to a large naked egg through this egg science project that kids will love. Kids Activities Blog is always excited when household items hold magical science powers!
We made a Naked Egg!
For Science, we are learning about the “building blocks of life” – aka Cells – this year with the kids. This is the best science experiment for kids EVER! We used this “naked egg” project along with the song about cells (featured at the end) to learn the parts of our cells.
The kids were able to identify cell parts by physically seeing, smelling, touching, and even tasting – ewwww! We put the egg in vinegar.
Egg Experiment
As the shell of the egg is made of calcium (a base, one of the primary ingredients in antacids), it breaks down with fizzles and bubbles when it is in contact with an acid. Vinegar is an acid.
We took our egg and dropped it lightly into a jar of white vinegar. After about 15 min it starts to bubble – just like when vinegar is dripped on baking soda – after about 8 hours the egg starts to spin as the gasses are released from the egg shell.
It is so pretty to see the dancing egg.
Due to osmosis, the cell – aka egg – absorbs the liquid and will start to swell. Parts of the egg shell will crack and dissolve.
After three days, you will have a completely naked egg!
Naked Egg – ewwwww!
Once your egg has lost its shell, be very careful with it. The membrane is very soft and permeable. We actually broke on of the eggs in our experiment during out photo shoot.
The naked egg is so squishy and slimy feeling – your kids will love it! As they hold it, identify the parts of your egg. There is the membrane – it holds the egg together.
We compared the membranes of a fresh egg, a burst naked egg and an egg that was sitting in sugar water. The differences and similarities are astounding. We found the nucleus – the command center or the brain of the cell- it is where RNA is replicated. The cytoplasm was easy to find, it is the “white” of the egg. In a chicken egg, the vacuole and Golgi bodies are inside the yolk.
Egg Science Project
Look at how much bigger the egg is after it absorbed all the fluid. For another fascinating experiment (if only we had more eggs, we burst a couple and didn’t have enough leftover), put the swollen naked egg into corn syrup and watch it deflate.
The opposite of osmosis will occur and the liquid will leave the cell, leaving a brownish shriveled egg. So interesting to literally watch what eating too much sugar does to us!
More Egg Science
Here is a great song that we used to learn the parts of a cell.
Have you done a science experiment with your kids?
I’d love to read about it!This science experiment was inspired by this egg experiment. We featured it last year in our Silly Science Experiment collection. Thanks Emma for sharing the details with us so we could remove our own egg shell!
More Kids Activities
This naked egg experiment is a great way to for kids to see science at work first hand. For more science experiments for kids, check out these other ideas:
- Rotting Pumpkin Science Experiment
- Science Experiment with Baking Soda and Vinegar
- Science for Kids: Make a Balance
Did you know? We wrote a science book!
Our book, The 101 Coolest Simple Science Experiments, features tons of awesome activities just like this one that will keep your kids engaged while they learn. How awesome is that?!
We did this experiment in 3-4 year old preschool class. The students loved it and were amazed at the results. http://www.brennaphillips.com/rubber-egg-experiment-update-2
We’ve done this experiment for years in high school biology. It gives a wonderful visual to the process of osmosis. And the eggs are definitely gross. 🙂
This sounds like the best way to learn about cells I have ever heard of! Can’t wait to try it this week!
I even find this gross so I know my kids will LOVE it. Pinning now. Thanks!
Thanks for the mention. It is a great experiment isn’t it?
is this just an ordinary egg?! COOL!!
So what are you testing
We did this experiment at home, both my kids aged 3 & 6 loved it and were very patient. We ended up leaving ours for a week and it got quiet rubbery! My kids also noticed a change in size. We will do this again but will measure our egg next time. I also read if you take it out of the vinegar and leave it exposed to the air it will harden again. However we burst ours so we before we got to this stage so can’t confirm this.
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Thanks for sharing! I can’t wait to try this with my little one. We’ve been doing science experiments all week!
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I can’t wait for my daughter to try this for her science project! So cool!!!
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I’m guessing you use a cooked egg before you drop the egg with the shell on in vinegar?
I actually did this with my kids after a friend brought one she did over during hers she added red food coloring so you could actually see the veins… It also bounced when dropped from 2-3 inches off the counter although the smell is not pleasant it was fun
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