Unit CR Activity 4 In-Class Movies To show and then play a movie, click on the arrow or the movie title/description. Repeat to hide it. UCR A4 Movie 1: Three balloons: hydrogen, oxygen & hydrogen-oxygen mix UCR A4 Movie 1: Three balloons: hydrogen, oxygen & hydrogen-oxygen mix Copyright © 2012 College of Chemistry, University of California, Berkeley. Uploaded to YouTube by Webcast-legacy Departamental. Original video. UCR A4 Movie 2: Reaction of aluminium with bromine UCR A4 Movie 2: Reaction of aluminium with bromine Copyright © 2008 ChemToddler. Uploaded to YouTube by ChemToddler's Channel. >Original video.   Next Gen PET Student Resources Home Page Copyright © 2017 Next Gen PET