Water Treatment and Filtration, Environmental Chemistry, Includes: Fine sand, Coarse sand, Fine gravel, Activated charcoal, alum, lime, Green food coloring, Odor agent, Plastic cups, 5 Stirring sticks, used in examining the changes in the water due to pollution
Van De Graaff Generator, Specially designed for electrostatic experiments and where continuous source of high voltage required. Fitted on base with smooth running DC Motor, operates on 220 volts A.C. 50 Hz