There are so many great resources out there! As I was looking for resources for our human anatomy study, I stumbled on a site that shares instructions and pictures for numerous neuroscience projects.
The Neuroscience for Kids website shares how to make a neuron using your choice of materials, many different activities to explore the brain, and much more.
We chose to make the brain out of Play Doh and do a string art brain connection activity for our study. They were both enjoyed, but the string art activity really brought home the point of the many connections we have in our brain.