Gear up to discover science by constructing weird, wacky contraptions. With this guide, children can start building, questioning, creating, and inventing--all the while learning fun physics principles and good science practices. 150+ illustrations.
Gear up to discover science by constructing weird, wacky contraptions. With this guide, children can start building, questioning, creating, and inventing--all the while learning fun physics principles and good science practi...
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