Hi!
I did this with my daughter last year. She was 14 at the time and I was a chaperone with the group. She did the Physics one and the Leadership one. They were well thought out with a friendly, enthusiastic group leader. She led discussions and then we went as a group on some of the rides to look for certain principles. It wasn't like my daughter learned a ton of stuff but she enjoyed it and so did I. We would not do it again though because even though it was fun and interesting, once was enough.
If you have more questions, just ask!
Wendy