Your tools: a resistance meter, a 9 V. battery,a thin piece of polyethylene tubing, 2 PVC coated copper wires, clip leads, a watch glass, and three solutions and three metals: 0.2 M CuSO 4 , 0.1 M ZnSO 4 , 0.1 M HCl, iron (a nail), Zinc, copper.
(clip; leads; a watch glass)
clip
leads
a watch glass