UNSCHOOLING CHEMISTRY: HOW TO MAKE A RUBBER EGG
An amazing and spectatular experiment can be made at home with your kids just using 2 ingredients.
This experiment shows us what can happen with egg's shell (Calcium) under influence of vinegar.
Actually the same can happen with our teeth!
My son was very imressed by this chemical "show"✨
So we need
- an egg (boiled one)
- a glass of vinegar
- a little patience😊 because we need to wait the results for about 15-24 hours.
We need to put an egg into the glass and wait.....
When the egg and vinegar come into contact, many small bubbles will appear.
This is carbon dioxide. This is how acid and calcium interact. Because of this, you can observe how the egg moves up and down. After the formation of bubbles, the egg rises. As soon as they burst, the egg will sink. This will continue until all the calcium is gone.
After some time the shell will completely dissolve in the vinegar...
These are photos in about 12 hours
After 24 hours there will be NO shell at all, and the egg will be like a rubber egg (very smooth and soft like jelly!).
The authors of experiment wrote that it even can jump, but ours didn't want to do it and it was broken fast;( It's very fragile. It looked like this.
But the main effect of the experiment was vivid - the shell is really dissolves in the vinegar completely just for 24 hours!
This is incredible creative. Thanks for sharing the experience with us
thank you!!
It's a slow but effective way of removing shells from hard-boiled eggs. I have found that peeling fresh eggs is damn near impossible without making a mess of them.
You should try this experiment with a chicken bone!
I think we need much more days with a bone:))
you'll be tired to wait;))
to peel boiled eggs fast, put them into the icy water for some min at once after boiling:)
It's a lifehack:)
I will have to try that. Normally, I cool them down more gradually by filling the pot with cold water from the tap, but I suppose a little thermal shock might work better.
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I remember my kids doing this one XD Think we tried one with a raw egg as well and from memory it was equally fascinating and very messy XD (good thing it has to be done in a container!
yeaahh I know some people do it with a raw egg, and actually we tried it too, but , don't know why, it was broken at once, no rubber egg at all:(😅
Wow, even if I am not a child I learned a lot from this experiment.
I appreciate Science more upon reading this post. ☺️
haha yeah, you know, me the same - such experiments give us more than school chemistry:))
Cool experiment. I should do it with Caleb, its soo easy to make it.
yeahh, and I'm sure he will be surprised by the result too;)
I always wanted to do more experiments. And you're the first to come back and check your posts as you shared a lot of them
And talking about this, I bought a set for experiments for Caleb just last week.
oh a cool idea!
waiting for your posts too;)
I'll post them when I'll do them. 😁
I remember that I did this experiment when I was about 11 years old and in that observation of the egg in the vinegar it certainly becomes soft like a boiled egg. Very good experiment for children to visualize at home.
Greetings and blessings
oh so it's a well-knows and old experiment, so cool that now our kids can investigate it as well;)
Wow, that's impressive to be remembered. And just from two ingredients and a drinking glass. Thanks again for the reminder. It may well be that this will also happen here soon ;-)
!invest_vote