Construct two flask form electroscopes and demonstrate electrostatics concepts to your class. Manual explains experiments for positive and negative charge studies and Faraday's Pail experiment. Kit comes complete with 2 glass flasks, 2 aluminum disc terminals, 2 sets of 4 foil leaves, 2 electrode assemblies, one aluminum can, 1 hard rubber rod, 1 silk cloth, 1 acrylic rod and 1 wool cloth.