I wasn't happy with my attempts at interactive video so I tried again this time with Google slides. I used gifs instead of video which gives a cleaner result. The gifs loop which is fine for repeating motion like waves but may not be any good for other examples. This also took a long time to make but not as long as the video version. I'm quite pleased with this one :-).

Advance the slides by clicking them or the answers to questions, don't use the slide advance controls.