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.
I dont really know whats age appropriate for a 12 year old but BobbyBroccoli has some good science controversy videos. He has a good series of videos on a physics scandal and a video on another physics scandal. He uses some cool visualizations and I like how he talks about the science and the people involved. Theres also cold fusion. One of the fusion videos has a title thats worrying but no one dies, its making a point.
Too dark at her age probably but maybe good as a teenager. I listen to Fascinating Horror who covers various disasters in 15 mins or less. I liked that the videos arent sensationalized. He always says the victims names and backgrounds, the circumstances leading up to it and the fallout. Like theres a video about a woman who was rushed the hospital and made the staff sick. Theres a lot of videos calling her the toxic lady. His video refers to her by name, mentions that moniker doesnt match how positive and loved she was, and her prior medical issues that likely caused her desperation.