Direct Vision Spectroscope in Metal Case Human Anatomy_Human Anatomy Charts & Models Beech wood test tube rack

Beech wood test tube rack holds 12 tubes up to 20mm diameter in a 9-inch frame for organized storage during chemistry and biology experiments

this Wimshurst generator builds a visible high-voltage spark

this Van de Graaff generator delivers spark-producing high-voltage demonstrations in the physics classroom

four-chamber stomach

calibrated to 2

Direct Vision Spectroscope in Metal Case Human Anatomy_Human Anatomy Charts & Models Beech wood test tube rackUsed to read spectral lines against a 400 700nm graduated scale, this metal cased spectroscope pairs a 600 lines mm holographic replica grating with sample vials and mount.