Comprehensive Basic Electricity Kit, 3-Part Subcategory_Electricity and Circuits Six-lens optics set of three

Six-lens optics set of three double-convex and three double-concave glass lenses with ground beveled edges

Sixty-five-piece molecular model set with 32 atoms and 33 bonds for demonstrating bonding angles

Turning the hand crank walks students through every stage of the 2-stroke gasoline firing cycle on a 14-inch model

Fine 40-60 mesh iron filings in a 100-gram sprinkle bottle

Comprehensive Basic Electricity Kit, 3-Part Subcategory_Electricity and Circuits Six-lens optics set of threeThree part electricity kit with cell holders, bulbs, switches, diodes, rheostats, and connecting leads mounted on 4mm socketed bases for building circuits from 40 plus components.