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See below for English description.

Ce livre d'activit's invite les jeunes ? construire un circuit de montagnes russes et ? d?couvrir tout ce qu'il faut savoir sur la gravitation, l'?nergie, la masse, l'acc?l?ration et le frottement. Vingt exp?riences leur permettront de comprendre les concepts scientifiques. Ils seront propuls's dans un monde fascinant en testant eux-m?mes toutes les th?ories sur le mouvement.

Kids will lose their marbles when they spend the afternoon with this Sciensationnel set.

In this book kids will ride on a roller coaster and learn some fascinating science along the way As they begin to learn amazing facts and understand principles of physics - like gravity, velocity, acceleration, friction, and centripetal force using a ball or marble from home and a small-scale ramp, they can think about all these things as they ride on a real roller coaster.

Sciensationnel Montagnes russes is a terrific way to give kids a step up in learning about physics.

Original title: Scientriffic: Roller Coaster Science