I have to side with Matthew94 on this one. There's a huge difference between happening upon something and knowing what to do with it, and happening upon something and going "look what I found! Cool, right?" She didn't figure out the molecule by trial and error, she figured it out by sticking things wherever they might go and getting lucky. That's not praise-worthy. If, instead of putting them together randomly, she'd gone through a bunch of "no, that won't work... no no, that's not right... well, that's close, but I still need more... no no, scrap that..." and so on, then she'd have demonstrated some talent. If it truly was a random assemblage, then she didn't do anything a toddler couldn't have done.
It's a touching story that a 10 year old girl was able to find a new molecule structure, but since she had no idea what to do with it, or what it could be used for, or even what the next steps should be, there's no reason to shower her with praise.