Whirlers and Twirlers by Vicki Cobb & Steve Haefele

Whirlers and Twirlers

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Description

Get dizzy the scientific way! Download this iBook and watch VC and Igor demonstrate the science behind yo-yos, tops, whirligigs, pinwheels, and other things that whirl and twirl. They'll even show you how to lasso your teacher just like a cowboy or you can learn to drive your friends nuts with a noisy button whirler.  It's all science with a dizzy, busy, spin.

"A fine series that will encourage enthusiastic learning." --Booklist

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