Building A Lemon Battery

The citric acid in the lemon provided the electrolyte component.  A galvanized nail provided the zinc anode (negative terminal), and a copper penny provided the cathode (positive terminal).

Our single lemon was able to produce 0.9 volts, as measured by our multi-meter.  





Tips:
*  It's important to roll the lemon on a table and squeeze it a bit to soften it.  This allows the citric acid in the lemon juice to flow more freely.

*  To illuminate the LED, we added 3 more lemons in series, and YES!  It did work! 
*  We experimented with various configurations (parallel and series) to see how the voltage and current is affected.



  Check out our Battery Lapbook!

1 comment:

  1. The citric acid in the lemon provided the electrolyte component. A galvanized nail provided the zinc anode (negative terminal), and a copper penny provided the cathode (positive terminal).smoke alarm batteries

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