Comment Demo for a K-5 Career Fair (Score 2, Informative) 310
I was asked to do something similar for computer science. I came up with this swish presentation. It's good for a 20 minute timeline and students will recognized some of the pictures. I don't think students at that age are thinking too much about career opportunities but it does give them some exposure to careers other than the "guy/lady that hangs around the school fixing computers".