US$ 92.00
with polystyrene spheres
plus a removal tool in a 4-compartment storage box
Nine removable sections expose cortical hemispheres
large enough for whole-class visibility when tracing magnetic field lines around bar magnets
and flight adaptations for bird biology teaching
Zinc Plates for Simple Cells Subcategory_Inorganic Compounds with polystyrene spheresZinc plate with 4mm socket terminals sized for the simple cell apparatus, providing the more readily oxidized electrode that drives current in classic galvanic cell demonstrations.
US$ 92.00
US$ 15.00
US$ 297.50
US$ 34.95
US$ 15.00
US$ 497.50
US$ 65.00
US$ 28.00
US$ 347.50