Crystals are beautiful, but more beautiful are the processes of forming crystals, i.e. crystallization. This film recorded the crystallization processes of 5 salts. We first added droplets of saturated salt solutions on glass slides. The evaporation of water initiated the crystallization processes inside the droplets, which were captured by time-lapse photography. (Photography: Yan Liang)
Teachers can download a Worksheet for using this film in classrooms.