Polypropylene Laboratory Tray, 18.5" Subcategory_Specimen Sets and a 60cm multicolored scale

and a 60cm multicolored scale on a hollow wooden resonance box let students vary length and tension to test the physics of vibrating strings

2A with constantan winding on a vitreous-enameled steel tube and a nickel-plated phosphor-bronze sliding contact

these two-part polypropylene Buchner funnels fit 11-12

Heart and both lungs separable into four removable parts expose pulmonary circulation and cardiac chambers together

Polypropylene Laboratory Tray, 18.5" Subcategory_Specimen Sets and a 60cm multicolored scaleChemical and temperature resistant polypropylene lab tray with wide carry lips, sized to organize glassware, contain spills, and ferry equipment between stations.