Bill Nye visits Hoover Dam and takes to jack-hammering concrete blocks to explore different types of pressure, while special equipment enables him to scuba dive and explain the effects of pressure underwater. Check out fire boats, fancy car hydraulic lifts, and a water jetski shop that pushes water at three times the speed of sound to cut through wood, granite, and even titanium.

Features: fully indexed "chapters" correlated to National Science Standards; interactive glossaries and quizzes; bonus footage of never-before-seen segments, interviews, and demos; on-disk implementation guide.