Chemicals and Solutions:
1M copper sulfate aq.
1M zinc sulfate aq.
small hydrometer cylinder
strips of copper and zinc
Digital readout voltmeter
piezo buzzer & switch
Fill a hydrometer cylinder half full with 1M Copper sulfate
Place a copper strip into the cylinder such that it both reachs the bottom of the cylinder and protrudes out the top of the cylinder.
Using an eyedropper carefully layer 0.1M zinc sulfate onto the copper sulfate
Place a short strip of zinc into the cylinder. The zinc strip should not extend into the highly concentrated copper sulfate solution.
Attach alligator clips to the zinc and copper electrodes and connect the cell to the voltmeter
The cell can also be connected to a piezo buzzer and switch.