US$ 15.99
anchoring side-by-side magnet-strength comparisons for the classroom
Two independent output channels on this compact AC/DC power supply deliver six selectable voltages up to 12V at 500 mA each
Greatly magnified Paramecium model reveals cilia arrangement
Highly useful for the wave demonstration
Chrome Steel Bar Magnet Pair with Keepers, 2.95 x 0.5 x 0.1" Foodsafe anchoring side-by-side magnet-strength comparisons forSlim 75 x 12 x 5mm chrome steel bar pair (2. 95 x 0. 5 x 0. 1 inches) with red blue pole markings and steel keepers, sized for compass deflection and small scale field line investigations.
US$ 15.99
US$ 179.00
US$ 148.50
US$ 69.30
US$ 47.00