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!
Learn all about Newton’s Laws and Energy conservation.
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
Check out this amazing renewable energy science kit featuring the wonders of hydroelectric power!
See the constellations visible in the Northern Hemisphere on this watch!
Use this cool Sea Monkeys zooquarium to teach your child how to take care of a pet!
This caffeine molecule mug makes an excellent gift!