The K'NEX Introduction to Simple Machines: Levers & Pulleys set is designed to introduce students to the scientific concepts associated with two types of simple machines – levers and pulleys.

The K'NEX Introduction to Simple Machines: Wheels & Axles and Inclined Planes set is designed to introduce students to the scientific concepts associated with two types of simple machines – wheels and axles and inclined planes.

The K'NEX Introduction to Simple Machines: Gears set is designed to introduce students to the scientific concepts associated with gears.

With the GraviTrax interactive track system, you can design and build your own race tracks and experiment with gravity, magnetism and kinetics to propel your gravity sphere to the finish.

Build towers of quirky robots, spinning gears, and wobbling cranes with this Robot Factory set by Learning Resources.