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Rounding and estimating
This is one web you'll want to get caught in - the K'NEX Web Weaver Roller Coaster Building Set
Key Concepts: Potential Energy (Gravitational & Elastic) ~ Speed/Velocity ~ Kinetic Energy ~ Friction ~ Inertia ~ Motion ~ Force
The Kid K'NEX Classroom Collection encourages each child to develop their motor skills
The K'NEX Revolution Ferris Wheel building set lets you and your children experience interactive fun while operating your very own amusement ride
K'NEX 35-model building chest Classic K'NEX Parts Rounding and estimatingLet your imagination soar with the 35 Model building chest! Includes instructions for the following models: Airplane, Attack chopper, Box truck, Butterfly, Catamaran, Cement mixer, Clapping monkey, Classic car, Coconut tree, Dancing ballerina, Dragster, Dump truck, Excavator, Ferris wheel, Fish, Go kart, Gymnast, Ice cream cone, Jet, News van, Off road rover, Plane, Racer, Rocket ship, Scrambler, Skier, Submarine, Suspension truck, Swing ride, Swing
US$ 34.00
US$ 17.00
US$ 18.00
US$ 60.00
US$ 17.00
US$ 20.00
US$ 13.00
US$ 20.00
US$ 275.00
US$ 18.95