This 3.7V lithium battery is perfect for solar science fair projects involving panels. Also great for building an off-grid solar power system for camping, RVs, or boats. Multiples can be hooked together in series to get higher voltage or in parallel to acheive higher capacity.
Learn Chemistry While Creating Sweet Treats
Build 20 different solar powered models with unique building pieces, controlled by an RC handset!
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.
This genuine meteorite is great for the rock collector in your family!
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!
Build your very own smart robot!