What will viewers see when they watch this video about vision? They will observe RJ and Sam hanging out during a power outage with Rookie, the dog. The boys discuss the structure of the eye (pupil, iris, cornea, lens, retina, optic nerve) and how it collects light and transports it to the brain. Along with the video on this webpage, find key vocabulary and a quick quiz to give as an assessment. Links to resources about other senses are included.