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)
Build your own 10 inch kaleidoscope with this great kit!
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
The LCD Digital Microscope II is a professional biological microscope at an affordable price. Up to 1600X with digital zoom!
Exciting magnet exploration for ages 8 and up!
This is a great clean heat demonstration model for the classroom setting!
Ever wonder how to survive in the wilderness? These cards can help!
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