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SpringBots: 3-in-1 spring-Powered Machines Collection_Activity Book Once completed

SpringBots: 3-in-1 spring-Powered Machines Collection_Activity Book Once completedBuild a motorized robot, race car, and countdown timer all that run without any batteries or electrical power! The secret behind these fascinating machines is a power source called a mainspring a spiral shaped spring that stores up energy when wound up by hand, and then converts that stored energy back into motion when it discharges. The mainspring inside the robot turns gears which enable it to march forward on two legs. The race car zooms across the

SKU: 41033288335 · From webdevsolutions.tech

4.6
USD44.99 USD84.99

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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

Description

Once completed

Assorted Maple Truffles from MADE

The fabulous 50th title in the much-loved That's not my

Vegan-Friendly

SpringBots: 3-in-1 spring-Powered Machines Collection_Activity Book Once completedBuild a motorized robot, race car, and countdown timer all that run without any batteries or electrical power! The secret behind these fascinating machines is a power source called a mainspring a spiral shaped spring that stores up energy when wound up by hand, and then converts that stored energy back into motion when it discharges. The mainspring inside the robot turns gears which enable it to march forward on two legs. The race car zooms across the

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