"live microorganism"

Demonstrate magnetic fields on your desk or overhead with this clear container of iron fillings. Using magnets, you can show students how the fillings move and cluster together.

A thin aluminum coating produces great sensitivity to electrostatic charges. Styrofoam pith-like balls measure 8 mm in diameter and each has a silk suspension cord.

This solid socket board holds light bulbs for circuit experiments.

Pith balls are an electrostatic necessity.

This large Van de Graff generator uniquely offers alternative drive modes, either hand-cranked or motor driven.

Pieces of reusable zinc-plated iron wire for magnetic field experiments.