Discover crystal treasure with the National Geographic Jumbo Geodes Earth Science Kit! With five extra-large, crystal-filled geodes to break open, kids can explore these breathtaking rocks with loads of hands-on fun! Geology doesn’t get more exciting than breaking open rocks and finding stunning crystals inside! The five jumbo geodes in this kit are approximately the size of a tennis ball (8-10 cm) and ready to crack open to see the stunning natural beauty inside. This earth science kit provides a hands-on science experiment that you and your children are guaranteed to love. This science kit includes: 5 high-quality, crystal filled, jumbo geodes 1 set safety goggles 3 display stands 1 full-color Learning Guide Cracking open geodes is the perfect activity for energetic boys and girls! The included display stands are perfect for showcasing the crystals they find, while the full-color Learning Guide teaches many amazing facts about geodes. Order the National Geographic Jumbo Geodes Earth Science Kit today and see how much fun geology can be! National Geographic Toys makes the highest quality hands-on science toys, and all products are backed by exceptional service. With a mission to inspire people to care about the planet, the National Geographic Society is one of the world’s largest nonprofit scientific and educational organizations.