US$ 150.00
environment
and impact during chemistry and woodworking
Mounted plant cell model exposes cell wall
Stainless steel bow-style crucible tongs opening to 4 inches with flat tips
Spare Components for Elementary Basic Electricity Kit Chemical_Sucrose environmentSpare rheostat unit for electricity kit replenishment, mounted on a blue base with two 4mm sockets for connecting leads into series circuits and variable resistance experiments.
US$ 150.00
US$ 18.00
US$ 57.40
US$ 22.49
US$ 175.00
US$ 120.00