Bill Nye the Science Guy explores skin, the largest living organ on the human body, in this episode of the Emmy Award-winning Disney Channel series, featuring an interactive question-and-answer format and hands-on activities. In this episode, Bill explains the naked truth about the organ that regulates body temperature, protects inner parts and provides the sense of touch. Designed to correlate with National Science Standards, the program includes a teacher's guide filled with suggestions for extension activities and classroom experiments. Disney Educational Production. c 1995, 2003 Disney.