High-quality weight with a hook fitted through the center allow you to hook weights together in tandem or use them one at a time.
Pass-through hooks are included on both sides of the weight!
Buy Newton's Cradle or balance balls here! This classic science desk toy that will keep you amused and teach you physics.
This microscope is so versatile you can even take it with you on a job site!
Build your very own smart robot!
Comprehensive collection of 30 fossils.
Build a magnetic levitating train with this science fair project kit!
Build your own windmill generator kit by recycling a plastic bottle!
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