Grow a Crystal Garden in Just 6 Hours Age: 8+ yrs For a rainy day or a bit of STEM Educational arts and craft time for Kids, Geode, and STEM Learning Guides This is more than just a science kit! With the Crystal Garden kit color each tree any way you’d like with the 5 watercolor pens in the kit and grow crystals in the colors you’ve chosen or grow you Glow in the dark crystal. Full-color learning guides included, packed with fascinating facts about crystals. New in a box, box opened for taking pictures