"Janitorial Supplies"

Smoth rolling hall's carriage for velocity experiments.

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'.

The High Speed Gear Box, High Efficiency, is perfect for high speed applications

With the Worm Gear Box, High Efficiency, it is possible to have high power or high speed with two different gear ratios

Trebuchet: the greatest weapon from the ancient world

These heavy-gauge aluminum carts come completely assembled with low-friction ball bearing wheels and space to carry five ordinary bricks.

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

Dramatically Demonstrate that Temperature Increases with Pressure

The Density Identification Set is ideal for an investigation lab.

Studying dynamic tension has never been easier with this simple form truss kit. The kit includes a half-meter truss with hooks on both sides, V-shaped clamp.Recommended stand and rod, item 470137-892 Required but not included are masses and spring scale.

Nine pulleys and an innovative device combine to create a classroom demonstrations for each topic on pulleys in your curriculum.

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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.