video in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including 교과서 실험관찰 5-6학년 실험동영상 : 산소는 어떤 성질이 있는지 알아보기-산소 발생 장치 꾸미기