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4M

4M Green Science Salt-Powered Robot STEM Building Kit

4M Green Science Salt-Powered Robot STEM Building Kit

$17.99
$17.99
Sale Sold out
Shipping calculated at checkout.
Why They'll Love It
Salt water powers the motor, no batteries needed
Build a working robot that runs on green energy
Real alternative fuel science in action
Availability: In Stock
Free Shipping on orders $49 and up*
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What Makes It Fun
Drop salt water into the engine and watch your robot march across the table. No batteries, no tricks, just science doing the heavy lifting.
The Full Details

This robot runs on salt water instead of batteries. Kids snap together the chassis, wheels, and motor, then mix up a saltwater solution to fuel the magnesium-air battery and watch the bot roll forward. The kit is part of the 4M Green Science range and focuses on alternative energy and eco-friendly power concepts through hands-on building and experimentation.

  • Powers a working motor using only salt water and a magnesium-air battery
  • Includes all parts needed to assemble the robot: chassis, wheels, motor, and battery components
  • Teaches how clean energy sources can drive technology through real, visible results
  • Combines construction skills with STEAM learning in science, engineering, and sustainability
WARNING:
CHOKING HAZARD
Small parts. Not for children under 3 years.
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