Across
- 1. it helps the brain learn and grow
- 5. it's inside the brain and there are billions of them
- 6. the brain is more like a muscle and it gets stronger when you learn
- 7. Ben
- 9. "work smarter not harder"
Down
- 2. people dont know much about this and how it works
- 3. *villager noise.mp3*
- 4. a brain does this
- 8. people think its a mystery