6-Piece Glass Lens Set, 38mm (Convex, Concave, Plano, Meniscus) Subcategory_Microscope Slides 5-inch female pelvis model demonstrates

5-inch female pelvis model demonstrates 9-month pregnancy anatomy and fetal positioning before delivery for obstetrics teaching

this silicone-belt Van de Graaff generator demonstrates charge conservation

and metamorphic transformations

a smaller-range counting tool for introductory arithmetic and place-value work

supporting variable audio modulation 1Hz-1kHz plus a 250kHz square wave for speed-of-light measurement work

6-Piece Glass Lens Set, 38mm (Convex, Concave, Plano, Meniscus) Subcategory_Microscope Slides 5-inch female pelvis model demonstratesSix piece glass lens set at 38mm diameter covering double convex, double concave, plano convex, converging meniscus, diverging meniscus, and plano concave geometries.