US$ 44.99
this plant cell model shows organelle ultrastructure and cell-wall layering for upper-level cell biology teaching
LPG Bunsen burner with an anti-tip cast iron base and adjustable air flow
acceleration
and ice-pail induction
Simple Switch Demonstrator with 4mm Terminals Capacity_25mL this plant cell model showsSingle open or closed switch on a 4mm terminal base, providing the cleanest hand operated way to make and break a circuit during early electricity instruction with stackable modules.
US$ 44.99
US$ 46.00
US$ 24.00
US$ 21.99
US$ 49.99
US$ 24.00