Experiments with Simple Machines

Experiments with Simple Machines

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Ideal for today's young investigative reader, each A True Book includes lively sidebars, a glossary and index, plus a comprehensive "To Find Out More" section l

Simple Machines!

Simple Machines!

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"Simple Machines! introduces kids to the concept of mechanical advantage and harnesses kid-power by inviting them to build machines of their own design. This bo

Simple Machines

Simple Machines

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For use in schools and libraries only. Includes an assortment of activities using such simple machines as pulleys and levers.