Wednesday, March 25, 2015

Easter Egg Geodes

As I was flipping through a magazine, I came across an activity making geodes out of eggs.  With it being Easter, I thought this would be a fun, science twist on dying our Easter eggs this year.  And it was!  The girls loved seeing the sparkling crystals that formed in the eggs.  It was a great way to excite our budding geologists with this Easter science experiment.

After I cracked a few eggs in half and cleaned them out, Jelly Bean and Jumping Bean poured white school glue into each half and brushed the glue around to cover the entire inside of the egg.  We left the glue to dry in a muffin tin overnight.

Next, tablets from an Easter Egg dying kit are added to hot water. 

I add Borax to each of the bowls and stir until dissolved (this part of the activity should be done by an adult).  Jelly Bean and Jumping Bean then add one half an egg shell to each bowl.  The first thing they notice is that the shells float so they had to figure out how to get them to the bottom of the bowl.  Jumping Bean said, "Easy.  Just push them down."

Then we placed the bowls somewhere they wouldn't be disturbed and waited until the morning.

Our Easter Egg Geodes turned out beautiful!  They make a great addition to our Easter decorations!

We had a great time exploring the crystals that had formed. We could feel the hard crystals loved looking at the shapes using a magnifying glass.  They looked just like the inside of a real geode!


  • uncooked eggs
  • knife
  • glue
  • paint brush
  • Easter egg dye kit
  • Borax
  • bowls
  • spoon
  • drying rack (we used a mini muffin tin)
  • hot water

  1. Carefully tap the side of an uncooked egg with a knife until it is cracked in half.
  2. Pour the eggs out of the shell and clean the shell with water.
  3. Squeeze enough glue in each egg shell half to cover the shell once painted.
  4. Using a paintbrush, brush the glue around the shell covering it completely.
  5. Allow the glue to dry completely.  We left ours dry overnight.
  6. Fill each bowl with 1 cup of water and heat in the microwave until hot.
  7. Place one dye tablet into each bowl and stir until dissolved.
  8. Adult will add 3/4 cup of Borax to the dyed water and stir until dissolved.
  9. Place one egg shell into each bowl.
  10. Place bowl in an area that it won't be disturbed.
  11. Leave undisturbed over night.
  12. Take the egg shells out of the water and let dry on a drying rack.
  13. Decorate your house with your new Easter egg geodes!


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