When I was a little younger than your son, my parents got me a book called The Third Millennium which was absolutely fascinating. It's basically a "history" wri

When I was a little younger than your son, my parents got me a book called The Third Millennium which was absolutely fascinating. It's basically a "history" written from the perspective of someone in the year 3000 looking back on how science and society changed in the years 2000-3000. I posted about it earlier and will try to find that post, but I would highly recommend it. It touches on many facets of science and how they might evolve and coexist over the next 1000 years. I got a copy for my daughter and I hope she gets as much out of it when she's older as I did when I was younger.