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Off Screen With App: Drawing on Eggs

Off screen with app – draw on egg

With Easter approaching, I always felt I should do something about Easter, but we have pretty much out grown all the egg activities.  It seems hard to find something about Easter egg to get a boy’s interest.  Just couple days ago, I came up the idea of using crayon to draw on eggs, based on what we learned from the app iLuv Drawing Monster, and then put the eggs in vinegar.  It was mostly just me being curious about what is going to happen.  In the end, it turned out pretty good.  Most importantly, I had my ten year old into the mood of drawing and doing science experiment.
Crayon Vinegar Egg

Here is how we did it.  First we picked a monster from iLuv Drawing Monsters and drew the monster in the app following the drawing instruction.  Once we learned how to draw the monster, we draw it on eggs using crayon.  While my son drew a monster, I drew a flower.  Note: you want the eggs be at room temperature, since the crayon won’t work well on cold surface.  Make sure the lines are thick, or the drawing won’t show up well after soaking in vinegar.

Draw on Egg Step 1

We then put the eggs in vinegar for about an hour.  While the rest of the egg shell was reacting with vinegar, the part covered by crayon did not.  While waiting, we observed the little bubbles on the egg surface, and we were able to talk about the chemical reaction and where the air bubbles are from.  It is the reaction between acetic acid in vinegar and the solid calcium carbonate in the egg shells.  The result of the reaction is calcium ions and carbon dioxide, ie. the bubbles we saw.

After soaking the eggs in the vinegar for about an hour.  We took the eggs out, cleaned them.  We then boiled the eggs.  The crayon melted and came off the egg shell after boiling.  However, the picture stayed on the egg!  Below, the picture on the left shows the drawing before boiling, and the picture on the right shows the egg after boiling.

Draw on Egg Step 2

I am glad we were able to use the app doing something not on the screen, and we were able to cover some art and science in one activity.

What did you do with some of the apps?  Were you be able to do something not on the screen?  I’d love to hear your ideas!

Looking for fun Easter learning activities? Check out 100+ Easter and Spring Activities for Kids. Spring Easter Activities for Kids

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{ 17 comments… add one }
  • Diana Rambles


  • Dawn

    Very EGGciting. thanks for sharing.

    • Thanks for commenting. I am glad to find a way to engage my boy.

  • Piwi Mama

    wow that was a great experiment! it made a great effect

    • Thank you. I like the effect too. I am just thinking, for some different effect, maybe add food color in vinegar?

  • Melinda

    were they edible after soaking then boiling? thanks for stopping by #kidsinthekitchen 🙂

    • We did not eat them. Not because of soaking, more because of staying at room temperature for too long. I did try open one today, the egg white shrank quite bit. – so on the safe side, I would say no.

  • Rachael

    Hmmm, had no idea it would do that! Very interesting! Thanks for posting!

  • maryanne

    I’ve never seen eggs decorated this way – so cool!

    • We had fun doing it. It is different when trying to engaging a boy. For mine at least, he is not interested in making things pretty, but more into messy fun. I am glad I was able to find a middle ground 🙂

  • melinda

    I love science in the kitchen. Would you pretty please link up to our #kidsinthekitchen post this week 🙂

  • Reshama Deshmukh

    That was an awesome experiment! Very interesting 🙂

    • I was happy with the result. My son was able to make couple more “monster eggs”, which was fun.

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