"3B torso model"

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

Compare How Different Gear Configurations Function

Add some tech power to your rocket experiments and take the guesswork out of altitude measurements.

Trebuchet: the greatest weapon from the ancient world

Lightweight, tear-resistant parachutes in a variety of sizes.

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

Demonstrate the independence of the horizontal and vertical components of projectile motion.

How high did it really go? Measure your rocket's altitude it with this easy to use device.