As it says on the tin. DD is fascinated by natural history; she loves skeletons and finding out about different kinds of creatures and where they live; she would adore a bit of light dissection (I'm too squeamish - my mum dissected an owl pellet with her and identified all the tiny mousy bones, and DD considers this a high point in life).
I wanted to take her to the Natural History Museum or the Pitt Rivers in Oxford, but train prices are prohibitive as we're in North Yorkshire. Consensus from friends is that the Yorkshire Museum is pretty unimpressive.
Any thoughts - not just about good museums, but also experiences your children enjoyed - would be hugely appreciated!