Tutorial: DIY Geodes To make beautiful geodes in your own kitchen you need more patience and time than anything else! Here is the basic recipe to start you off in the world of beautiful geodes. Good idea for teachers!
How to Make a Cardboard Box Marble Labyrinth Game - Frugal Fun For Boys Engineering STEM activity for kids - Build a cardboard box marble labyrinth! Get the marble through the course without it dropping into the holes.