Glass Friction Rod, 30cm x 13mm Subcategory_Wash Bottles 5-inch needle-pointed stand grips a

5-inch needle-pointed stand grips a 3/4-inch-wide bar magnet upright for hands-free study of attraction

Four-piece Euro-design polypropylene measuring jug set covering the four mid-range bench volumes

Transverse and longitudinal sections of this 3D dicot stem expose epidermis

Zinc die-cast body with non-toxic powder coating mounts vinyl-coated four-prong jaws on a 5

Glass Friction Rod, 30cm x 13mm Subcategory_Wash Bottles 5-inch needle-pointed stand grips aSolid glass friction rod that develops a positive electrostatic charge when rubbed with silk or wool, used as the standard positive partner to ebonite in triboelectric investigations.