Comprehensive Basic Electricity Kit, 3-Part Subcategory_Electricity and Circuits Entry-level two-part human skull model

Entry-level two-part human skull model separates the skull cap to reveal the cranial cavity for introductory head-anatomy teaching at secondary and college levels

Four-metal 32mm density cube set with hooks in brass

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

Comprehensive Basic Electricity Kit, 3-Part Subcategory_Electricity and Circuits Entry-level two-part human skull modelThree 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.