Motor-Driven Van de Graaff Generator, 220,000V Science at Home_Chemical Science and hinge-distance scales adjustable from

and hinge-distance scales adjustable from 0 to 45 degrees

and brush needed to outfit a chemistry or biology bench from scratch

Pivoted needle-style electroscope that swings on its axis when a charge is applied

Thirteen-piece research-grade starter kit assembling the retort stand

this Brownlee-pattern apparatus gives a clean visual proof of the 2:1 stoichiometry of water decomposition

Motor-Driven Van de Graaff Generator, 220,000V Science at Home_Chemical Science and hinge-distance scales adjustable fromContinuously motor driven to supply a steady high voltage source, this silicone belt Van de Graaff generator demonstrates charge conservation, conduction, and ionization.