Paper Roller Coasters 纸做的过山车 stem 科学实验 儿童少儿早教英语启蒙教育

[视频作者] Muy_bien_木易缤

[视频时长] 2:11

[视频类型] 科学科普

Youtube https://www.youtube.com/watch?v=U7XYzPfutBs&list=PLlBVuTSjOrcnF1XEaFk8zfV_PQogm3jxT&index=3 Build marble roller coasters from paper in this fun activity!