"live microorganism"

Explore precision and error in measurement.

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.

Dramatically Demonstrate that Temperature Increases with Pressure

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.

A set to demonstrate the rise in temperature when a fixed mass of gas is compressed.

Pulley set to expand your TeacherGeek ideas.

This solid socket board holds light bulbs for circuit experiments.

Pith balls are an electrostatic necessity.

Clearly Observe Inner Workings

High quality and low cost make this ideally suited for junior high or high school students.

This diver set expresses the effects of air pressure and buoyancy.

Explore beautiful 3-D patterns created by a magnetic field mess free.

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.

String this across your classroom to learn about velocity and acceleration.

Project a straight line for mirrors and lenses.