Each of these 20 marbles has a magnet inside. There are countless experiments one can do, from stringing them together to building 3D structures. It is actually harder than it looks since one has to account for a complex 3D interaction of magnetic fields. Great fun! Set contains 20 magnetic marbles packaged in a handy, reusable plastic container, and it comes in assorted colors.
This magnet has a strength of: 300 Gauss (0.03 T)
See the constellations visible in the Northern Hemisphere on this watch!
Build your own windmill generator kit by recycling a plastic bottle!
Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale with up to 350,000 volts!
This chemistry learning and experiment kit comes with components and chemicals for over 75 amazing experiments!
Learn all about the science of light, optics and visual perception with this wonderful kit!
The Hoberman Sphere expands and contracts with a magical motion so fluid and simple that kids can't help but play with it for hours.
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