"Microtomes and Microtome Assemblies"

Easy-to-assemble beginner level rocket with pre-colored parts.

This launcher is easy to assemble, and it delivers consistent classroom results.

Ideal for studying rotational dynamics.

Trebuchet: the greatest weapon from the ancient world

This activity illustrates the relationships of mass, potential energy, and kinetic energy with marble races.

Clearly Observe Inner Workings

Build 5 simple machines simultaneously!

This working model hydraulic/pneumatic jack shows how hydraulic or pneumatic systems can multiply forces.

Intermediate-level rocket with laser-cut balsa fins and streamer recovery system.

The iconic Alpha III model rocket, complete with launch pad and controller.