An essential piece of equipment for demonstrating that the forward velocity of a ball ejected vertically is the same as the forward velocity of the vehicle from which it was ejected. Includes a vertical spring-loaded barrel and a 1" diameter steel ball. The ejection mechanism has two settings that are controlled by a release pin and cord. Instructions are provided.
Build a robot that's an artist too!
Discover how solar cells make electricity with this awesome kit!
The cards show the name of the element, the atomic number, group, natural state and common usages!
Easily assemble a working alarm motion detector!
This kit allows to build up to 3 different robots!
A combination of three of our great discovery toys, all in one package!