US$ 24.99
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
anchoring side-by-side magnet-strength comparisons for the classroom
suited to fieldwork in geography units and orientation activities outside the classroom
modular instruments
92-Atom Molecular Model Set Subject_Physics dropping resistance as temperature risesNinety 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$ 24.99
US$ 17.50
US$ 25.00
US$ 574.50