Build spinning structures and learn how gears of different sizes interact using our Gears!Gears!Gears!® Wacky Factory Activity Set (LER 9165, sold separately). As kids construct various machines, they learn about gear ratios and more. Features full-color photographs of more than 16 gear creations and lots of problem solving activities.
Gears! Gears! Gears!® Gear Lab Activity Book
- Brand: Learning Resources
- Product Code: LER9179