How Does Your Brain Work? is a fantastic introduction to the science behind what goes on in your head. The brain nervous system and senses are explained through hilarious colorful illustrations and an engaging question and answer format designed to appeal to even the most reluctant readers. Packed with plenty of giggle-worthy gross bits it's a fun. accessible look at an important subject.
Buy The Curious Kid's Guide To The Human Body: HOW DOES YOUR BONKERS BRAIN WORK?: STEM by John Farndon from Australia's Online Independent Bookstore, BooksDirect.