This is a polished anodized aluminum sphere which, when grounded, is used to receive the intense arc discharges from the Van de Graaff generator dome. The flexible grounding lead is 90cm long and has a banana plug at one end which connects to the base of the sphere and an alligator clip at the other end which connects to the ground post on the base of the generator.
Great microscope for viewing both slides and 3D objects such as flowers, bugs, rocks and more. Includes all accessories!
It's fun to be smart with this fast-paced board game!
Great reference card for chemistry and physics students.
This classic device is used to demonstrate the conservation of mechanical energy.
Experiment with engines powered by air pressure and water, and build models to race your friends!
A combination of three of our great discovery toys, all in one package!