Hand-Crank Van de Graaff Generator, 100,000V Biology and raised-graduated for shatterproof bench

and raised-graduated for shatterproof bench use

Shows oxygenated and deoxygenated blood paths between heart chambers and alveolar surfaces through seven hand-painted removable parts designed with medical-professional input

exposing the full urinary tract for combined anatomy and physiology teaching at 15 by 9 inches

Diamond lattice kit with 39 carbon atoms and 60 connectors for building the tetrahedral covalent network that gives diamond its exceptional hardness and optical properties

Hand-Crank Van de Graaff Generator, 100,000V Biology and raised-graduated for shatterproof benchHand cranked to convert mechanical work into electrostatic energy, this Van de Graaff generator delivers spark producing high voltage demonstrations in the physics classroom.