4th Grade (Ages 9-10)
![4th Grade Denny the Dinosaur wearing glasses and a bowtie with science equipment.](https://sites.krieger.jhu.edu/mnf/files/2023/03/Dino-4G07-1-1024x1024.png)
Because your brain does so much for you, this story describes things that you can do to protect your brain and make sure it is healthy.
- Your brain is very squishy and needs your protection.
- Your brain needs sleep – to take out the trash.
- Your brain needs energy because there is no such thing as a fat head.