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Experiment with different techniques
Pick a puzzle from the book
com/classic for additional building instructions
and all are made with the very best materials we could find--so they're tough enough to stand up to years of play and look gorgeous for years to come
and a goldfish--has four
Rubber Band Racers Figures Experiment with different techniquesFly into physics fun with five models driven by an awesome rubber band powered propeller. Using ultralight plastic and bamboo parts, build a helicopter, fan boat, airplane, car, and catamaran. Learn how the elastic material stores energy and then releases it to move the models.
