NATIONAL GEOGRAPHIC Geode Dig Kit FUN TREASURE DIG - Kids get to dig up 3 real geodes! Geodes are natural wonders that can be broken open to reveal dazzling crystal caves inside AN EDUCATIONAL ADVENTURE - Learn about geodes, crystals, and geology with National Geographics full-color learning guide START A ROCK COLLECTION - Dig up these geodes and find the perfect specimens to add to your rock collection PERFECT FOR HOMESCHOOLERS - This interactive activity makes the perfect hands-on homeschool project. Learn about earth science the fun way! RESPECTED QUALITY - Providing children with the best educational toys, this kit is backed by National Geographics 100% satisfaction guarantee