Nervous System
Within Science
ASL
![Still image from: Crash Course Biology: The Nervous System](https://org-dcmp-staticassets.s3.us-east-1.amazonaws.com/posterimages/18173_1.jpg)
Crash Course Biology
Season 0 / Ep 126
11 minutes 37 seconds
Grade Level: 9 - 12
ASL
![A comparison of passive echolocation used in vehicles and active echolocation in dolphins.](https://org-dcmp-staticassets.s3.us-east-1.amazonaws.com/posterimages/13458_1.jpg)
It's Okay to Be Smart
Season 7 / Ep 18
16 minutes 8 seconds
Grade Level: 9 - 12
ASL
![Man talks to us while moving his hands.](https://org-dcmp-staticassets.s3.us-east-1.amazonaws.com/posterimages/15736_1.jpg)
It's Okay to Be Smart
Season 8 / Ep 18
8 minutes 56 seconds
Grade Level: 10 - 12
ASL
![Diagram shows brain nerve cells branching like plant roots.](https://org-dcmp-staticassets.s3.us-east-1.amazonaws.com/posterimages/17406_1.jpg)
It's Okay to Be Smart
Season 6 / Ep 11
8 minutes 19 seconds
Grade Level: 7 - 12
ASL
![Man sits at a desk that has a computer, wires, and electrical and lab equipment on it. He holds a blue wire to a battery. Behind him is a bookcase filled with books and knick-knacks like a framed butterfly and different dinosaur skeleton miniatures.](https://org-dcmp-staticassets.s3.us-east-1.amazonaws.com/posterimages/15753_1.jpg)
It's Okay to Be Smart
Season 9 / Ep 7
18 minutes 49 seconds
Grade Level: 10 - 12