They'll appreciate the physics behind Adam and Jaime's experiments even more when they can create models with different gear ratios, try different style turbine blades, and even recharge batteries with this kit. MoreShop now and Save 50% on Books, DVD's and select Maps. Limited-time only.
Personalized Baby Gifts
Custom apparel, frames, keepsakes & more for infants & toddlers.
Luxury Baby Gifts & Decor
Personalized baby clothes & custom gifts. Fine Nursery Decor & Linens
Send a Vermont Teddy Bear
The perfect gift idea for any new baby or mother-to-be.