Here are some videos your classmates created of their Rube Goldberg Machines...
https://www.dropbox.com/s/kpz10j40p0yuj23/LINE_MOVIE_1537826695504.mp4?dl=0
https://www.dropbox.com/s/40f26zitl8urzbq/Science%20project.mp4?dl=0
https://www.dropbox.com/s/99s00hgyqqnk9kp/VID-20180926-WA0007.mp4?dl=0