Grade Level: 9 - 12
Age Range: 14 - 18
Lesson Length: 1 - 2 classes
![Four images used in Dendritic Spines Lab lesson](https://brainu.org/sites/brainu.org/files/images/ls_dendriticspines_pix4.jpg)
The brain physically changes when exposed to drugs. This activity utilizes scientific thinking and assessment without the need for laboratory equipment. Students investigate how neurons change their connectivity when exposed to the drug morphine.