I’ve seen this experiment a few times on Pinterest – and I’ve been desperate to give it a try! 🙂
I wasn’t disappointed!
What do you need?
Blown out egg shells (1 egg makes 2 geodes)
White school glue / glue sticks
Hot water (almost boiling)
Food colouring (stronger the better) or egg dye
Step 1 :
Cut egg shells in half with scissors, then paint the inside of the shells, and over any cracks, with the glue..
Step 2 :
Sprinkle alum over the glue…
Step 3 :
Pour 2 cups of (almost) boiling water in to a glass / plastic container, add food colouring / egg dye, and stir until dissolved..
Step 4 :
Stir in 3/4 cup alum, and keep stirring until completely dissolved (if it is not totally dissolved the alum will not be attracted to the egg so much)…
Step 5 :
Leave for 12 – 15 hours (we left ours for 24)….
Step 6 :
Carefully take them out and leave them on a draining tray (protected underneath) to dry…
Beautiful, beautiful, beautiful!