children conduct chemical experiments at home. two little girls observe a chemical reaction. Science for children.
Chemical Experiment. Children Are Engaged in Elementary Chemistry at Home. the Elder Sister Explains
Alpha Channel: No, Looped Video: No, Frame Rate: 29.97, Resolution: 3840x2160, Video Encoding: H.264, File Size: 261MB, Number of Clips: 1, Total Clip(s) Length: 0:21