Because the plates of the Earth are always moving, earthquakes are frequent, although most are too small to be detected by humans. "Standup scientist" Bill Nye confronts the quaking Earth in Bill Nye the Science Guy: Earthquakes, and helps young science students understand the forces behind the shakes. In his usual fashion, Nye throws jokes, Sounds of Science music, and a lot of silliness that youngsters can appreciate into his shows. But instead of detracting from the subject, these devices help students recall the concepts being taught. The music video in this episode is "Earthquakes," a shameless takeoff of "Shake Your Booty" by K.C. & the Sunshine Band. ~ Alice Day, Rovi