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 SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you.