Vacuum Pump with 200mm Pump Plate Subcategory_Test Strips Glass equilibrium tubes with plastic

Glass equilibrium tubes with plastic base demonstrate pressure equilibrium

Double-vessel copper calorimeter set with a 75 by 50mm inner cup on cork supports inside a 100 by 75mm outer shell and a slotted lid

polished with ground edges for image-formation experiments in introductory optics

sized to read one step up from the 0-1A meter when student circuits draw past the lower meter's full-scale deflection

Tandem double plastic pulley pairing 38mm and 50mm low-friction wheels on an open-sided steel frame

Vacuum Pump with 200mm Pump Plate Subcategory_Test Strips Glass equilibrium tubes with plasticHand operated vacuum pump with a 200mm copper pump plate and rubber seal, a battery free source of partial vacuum for bell jar demonstrations without external power.