Description

Compact 200x44mm extended-range rheostat at 50 ohms and 2A

and diatom preparations for microbiology and protist-identification work

anchoring side-by-side magnet-strength comparisons for the classroom

and 0-500mV at plus-or-minus 2

modular instruments

92-Atom Molecular Model Set Subject_Physics Compact 200x44mm extended-range rheostat atNinety 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.

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92-Atom Molecular Model Set Subject_Physics Compact 200x44mm extended-range rheostat at

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