When I was growing up, we had discovery channel. That sparked my intrinsic curiousity. My daughter has that intrinsic motivation as well, but only for k-pop now. She likes youtube videos and she likes when I tell her about science stuff. Maybe I can combine that by recommending her some good youtube channels.
Technically more of an engineering / maker channel, but Xyla Foxlin is great. She does occasionally swear, but a 12 year old has probably heard those words before. Yeetmas, where she launches a Christmas tree rocket, would be a good place to start. (Not a Christmas tree themed rocket, a decorated pine tree on top rocket motor as long as your arm.)