Mrs Jules (Ph.D Chemistry, Imperial) runs an after school science club for 10-12 yo's at our local primary - not a commercial concern - just a couple of quid a session to cover materials. She was annoyed that kids didn't do hands-on science at primary school. I think she got a chemistry set for her 7th birthday
The kids do real dangerous (toxic chemicals, laboratory glassware, naked flames) but fully risk assessed science - hands-on. They evaluate, log and report on what they have found like real scientists. It's not all chemistry BTW
I'm sure she would be happy to share her experiences on this to anyone who would like to PM