yes, I totally agree! Hopefully you'll find some answers around here. My son also is interested in anatomy, math and astronomy the most. He's a little mister mind when it comes to math and planets.

You should definetely give it a go to Alphablocks. Maybe it works for you. They have many good reviews and apparently they helped many kids with reading and phonics.

I'm sorry I can't help you with an advice but if an idea comes to my mind I'll come back to you. I know what you're searchign for. Actually I feel I can relate to you because myself I try to arouse my child's interest in nature and environment but I can't say I succeeded. We did many activities on the topics and reading, spending time outside and so many more but still, somehow I dont feel he's into it. I guess its not the time or simply he doesnt like it so much as he likes numbers.