This sound experiment kit is crafted with learning quality in mind, featuring practical materials that ensure longevity and repeated use. Its appealing design and straightforward experiment setups make it a favorite among educators and students alike, transforming abstract physics concepts into tangible learning experiences that can be multiple times. Features -Color:Multi -Material:Plastic -Size:12.00X4.00X4.00cm/4.72X1.57X1.57in -Size:11.00X8.00X8.00cm/4.32X3.14X3.14in -Reallife science: children experience reallife applications of physics concepts, connecting classroom learning to the world around them. - : this kit encourages mindfulness and , as children must pay attention to detail during experiments. -Cognitive growth: engaging in scientific experiments promotes cognitive growth by stimulating critical thinking and reasoning skills -Parental involvement: parents can easily participate, making it a wonderful opportunity for family bonding through learning activities -Fun challenges: the kit introduces fun challenges that motivate kids to experiment, , and observe their results enthusiastically Package list: 5 x set of sound propagation stem kit