This a one page online computer activity sheet.
It starts with a youtube video on the nervous system, then goes through some activites that test the brain and reflexes. The first activity requires students to stop sheep with an arrow to see how fast their relexes are. The next activity is to watch a mouse under normal activity and under the influence of alcohol. The third activity has students react to the computer screen changing color and how fast they react to different colors. Also included is a website of illusions and a short term memory test. It concludes with youtube songs about the nervous system.
This activity takes about 1 class period.