Unit PC Activity 1 In-Class Movies To show and then play a movie, click on the arrow or the movie title/description. Repeat to hide it. UPC A1 Movie (optional): Hot cans UPC A1 Movie (optional): Hot cans UPC A1 Movie 1: Bathroom scale UPC A1 Movie 1: Bathroom scale UPC A1 Movie (optional): Railroad tank car vacuum implosion UPC A1 Movie (optional): Railroad tank car vacuum implosion Uploaded by Tom Brattain (2008). Original YouTube video.   Next Gen PET Student Resources Home Page Copyright © 2017 Next Gen PET