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让盐粒跳舞，让声音看得见，神奇有趣长知识的的科学小实验
在家就能做的科学小实验，简单，神奇，有趣，好玩！如何才能让声音看得见？如何让盐粒跳舞？适合带着宝宝一起做，一起长知识的科学小实验！片尾还有实验原理，快一起试试吧！
100个神奇有趣的科学小实验，有原理解析，适合带娃在家做的视频39/58
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