Unit CR Activity 5 In-Class Movie To show and then play a movie, click on the arrow or the movie title/description. Repeat to hide it. UCR A5 Movie: Alka-Seltzer™ in water: Temperature and mass UCR A5 Movie: Alka-Seltzer™ in water: Temperature and mass   Next Gen PET Student Resources Home Page Copyright © 2017 Next Gen PET