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Close in spirit to the piece you came for.
More screen-free favorites they'll reach for.
Science & STEM Kits
$12.99
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Science & STEM Kits
$12.99
Sold out for now
This one has sold through. Some pieces return with the next delivery; retired and small-batch designs may not come back at all.
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Power a robot with nothing but sunshine. The 4M Solar Rover Robot lets kids build a cool solar-powered rover from the included parts and a recycled soda can — then take it into the light and watch it roll, driven entirely by the sun.
It's a genuine lesson in solar energy wrapped in an eco-friendly build: detailed instructions guide every step, and the payoff is a working machine that proves clean energy is real. A standout STEM gift for budding engineers.
