Save some of your eggshells that you have used. When you are getting ready to use your egg, crack the top and let the egg drip out. I used a spoon to crack the top so I could control what was breaking. You can remove as much or as little eggshell as you want. Make sure you clean them out VERY well, especially the membrane (this took time…kind of a pain!). You don’t want mold!Next you need to boil up some water. I used a 1/2 C at a time. This filled 2 eggs. When the water is boiling add in anything that dissolves in water. You can use Epsom Salt, Sea Salt, Sugar, Cream of Tartar, Borax, etc. Put as much in that will dissolve in water. Add food coloring. Then wait.
We have been doing a lot of Rockhounding lately, so this is tying in perfectly. We even found some of our own real geodes.
This was a fun activity for Maggie and I. Her dad even got a curious and would check on the eggs. So this is something the whole family can get involved in! I would love to see pictures of yours if you do an Egg Geode experiment!
Thanks to Roots and Wings Co for the great idea!