This is the question sheet I use with Bill Nye's Electrical Current DVD. Between watching the video, answering the questions, and sharing answers, this is enough material to fill one class.
The DVD comes with a quiz as well, but it is a bit basic and does not promote discussion. I prefer to use my own questions. I have included an answer sheet as well.
If you think you may not have enough time, you can always skip the music video at the end of Bill Nye's videos. They are excellent, but usually do not add much in the way of content or explanation.