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4M Tin Can Cable Car Kit introduces the basics of mechanical engineering and renewable materials in a fun, hands-on! Explore the exciting worlds of mechanical engineering and green science with this 4M Green Science Kit.
Discover the science of batteries with the 4M Lemon Powered Clock Kidz Labs Science Kit. This clock is powered by a lemon. Simply add your own lemon to turn this kit from into an amazing lemon-powered clock.
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