Eco-Engineering - Water Powered Clock

Just add water and magic - the clock begins to work!  Build this water-powered clock and learn about how batteries work.  Clock is approximately 18cm in length when built.  Contents: 1 x clock frame, 1 x water container, 1 x clock module rear case, 1 x clock module, 2 x zinc strips, 2 x copper strips, 1 x wire, 2 x electrode holders, screws and detailed instructions.  You will also need from home: a small crosshead screwdriver, table salt and sticky tape.  Age 8+ years.  Part of the Eco Engineering range. 

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