Shit the number of things we got away with in my high school electronics and metalworking classes is absurd. Lots of stuff was tested for "explosiveness" or otherwise destructive fun. The teachers, deans, and even the in-school cop used to stop by just to watch our antics.

In chemistry one year I was doing experiments to validate various compositions of gunpowder for burn rate, and was allowed to cary around the components in my bag. The shenanigans when we combined it with some electronics and metalworking were fantastic. We made a little rocket car, then modded it to blow up at the end of the run, then made little poppers to startle the teachers. Not one bit of actual trouble, just a few "talkings to". During the actual demo of the results, we put a little too much in the crucible and it exploded, sending burning shrapnel onto the front row of students' desks. Again, no trouble.

So I'm not sure that it even counts as something that needs reprimand. Curiosity is something that should be rewarded. At worst she should get a "hey, be a bit more careful" talk. And then given access to facilities where she could be more careful while being curious at the same time.