92-Atom Molecular Model Set Subject_Physics and a 10x eyepiece for

and a 10x eyepiece for fine-resolution measurement in classroom and research laboratories

and diatom preparations for microbiology and protist-identification work

dropping resistance as temperature rises and giving an introduction to temperature-dependent semiconductor sensors

Designed for liquid-fill Snell's-law work at smaller scale

with holes at 25mm intervals for hanging masses during torque

92-Atom Molecular Model Set Subject_Physics and a 10x eyepiece forNinety two atom molecular model set with hydrogens, carbons, nitrogens, oxygens, halogens, and gray metals at 30 50mm diameter, plus medium, long, flexible, turning, and short bonds.