"Janitorial Supplies"

Four gears of different sizes, perfect for any investigation or maker project.

Versatile teaching kit contains enough materials for the whole classroom to learn about and experiment with a variety of pulley configurations. Because these activities are hands-on, students get a real feel for the forces at work.

This package of plastic pulleys contains 25 each of 20, 30 and 40 mm diameter pulleys with 3.2 mm bores and one 10 mm pulley with a push fit to a 2 mm motor shaft.

This kit is used to perform the classic experiment of the 'Monkey and the Hunter'.

Trebuchet: the greatest weapon from the ancient world

Dramatically Demonstrate that Temperature Increases with Pressure

This is an excellent, inexpensive apparatus for experiments in precession, inertial guidance, and gyroscopic stabilization.

The Density Identification Set is ideal for an investigation lab.

Study the motion and behavior of gas molecules with this intriguing demonstration. An electric motor, running at 4 to 12 V DC, vibrates a small platform inside a transparent tube. This platform then violently vibrates the many small stainless steel balls inside the tube.

The Complete Precision Air Table helps investigate low-friction collisions.