4M Salt Water Robot


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+ what is playability?
Build a racer that is powered only by salt & water! Includes 2 complete charcoal battery kits (each of which will power the robot for 60 minutes) robot body & detailed instructions/fact sheet.
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Rated 3 out of 5 by from Very small Very cool idea and the information including is fantastic for a learning experience, but the robot itself is small enough to fit in a snack baggie. The big box is very misleading. I would not recommend this for any family where a group of children would be in on building this.
Date published: 2014-06-18