This 2x-cell CR2032 battery holder is excellent for use in any hobby or science project. Comes with wire leads for easy hook-up, and an on/off switch. Recommended for electronics applications, for use in science fair projects and more!
This is a great clean heat demonstration model for the classroom setting!
Build your own windmill generator kit by recycling a plastic bottle!
This ultimate chemistry set features 250 mind-boggling experiments!
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.
A massive mounted set of 100 rocks and minerals found in the US,
Build a model green house and 9 other green energy-related devices with this great kit!
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