A01自然科

翰林教學影片

六下

1.  https://www.youtube.com/playlist?list=PL3jLUlWGtgG0iN_RJqQyKjsF3gpVsHfNr

2. https://www.youtube.com/playlist?list=PL3jLUlWGtgG3HOHDV062gruAUmu6PIjYH

3. https://www.youtube.com/playlist?list=PL3jLUlWGtgG1YW9YVGO8K8vjksCv8CGvd

真空自由落體

發霉