MASSIVE SCIENCE KIT FOR CURIOUS KIDS - More than 15 experiment activities including dueling water tornadoes, building an erupting volcano, growing a crystal, two geologic dig kits, and more ENOUGH TO GO AROUND - This science lab allows kids to conduct multiple experiments and is great to share with family, friends, or classmates; you will enjoy the magic of discovery together THE SECRET IS THE SCIENCE - A detailed learning guide teaches the science at work in the experiments, allowing your child to develop a deep, lasting appreciation for a variety of Earth sciences HASSLE-FREE EXPERIMENTS - Clear, easy-to-follow instructions build young scientists' confidence as they experiment, allowing them to focus on the joy of exploration and discovery RESPECTED QUALITY ? National Geographic Toys is proud to provide only the highest quality products, each backed by a complete satisfaction guarantee