You're never too old for rainbows, explosions, or rainbow explosions.
Make crystal geodes out of alum powder, eggshells, and glue.
I would put this on my coffee table. Get the full directions here.
Teach kids about the plant xylem with this dyed flower experiment.
Bonus: you'll have pretty, strange-colored flowers.
You'll be just as fascinated by the bouncy, transparent eggsperiment.
Get the directions here.
Teach the kids to make lava lamps.
You'll get a nostalgic trip down memory lane without having to step foot in Spencer's Gifts. Directions here.