US$ 75.00
suited to fieldwork in geography units and orientation activities outside the classroom
anchoring side-by-side magnet-strength comparisons for the classroom
and diatom preparations for microbiology and protist-identification work
with holes at 25mm intervals for hanging masses during torque
and 0-500mV at plus-or-minus 2
92-Atom Molecular Model Set Subject_Physics suited to fieldwork in geographyNinety 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.
US$ 75.00
US$ 658.50
US$ 321.50
US$ 400.00
US$ 886.50
US$ 33.99
US$ 750.50
US$ 629.50