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Rich set of scientific tools: Through interesting scientific experiments, such as creating rainbow rain, erupting volcano, rainbow fountain, etc. Packed with experiments and activities for kids, it's a fun and educational toy that engages kids in STEM learning. It improves children's hands-on ability and thinking ability, allowing them to focus on the fun of exploration and discovery. Explore the world of science: Clearly show the steps and scientific principles of more than 120 experiments, guide your little scientist step by step from simple to challenging, and enhance children's self-confidence. Our science experiment set stimulates children's interest in learning and curiosity, and promotes their understanding and exploration of science through interactive and hands-on methods. Safety: Do more than 100 interesting scientific experiments with safe materials. We carefully pack the chemical materials into different bottles, and close the caps tightly after use, so that the chemical materials are not easy to deteriorate, so they can be used again and continue to be happy. Parents can rest assured to let their children play.