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#Set the [[Potential Difference|potential difference]] to 4 [[Volt]]s.
#Record your [[observation]]s of changes at each [[electrode]]. You may also use a [[pH indicator]] paper next to the [[anode]] and note any colour change.
#After 5 minutes turn off the [[Power Pack|power pack]] and remove the [[cathode]] to [[observe]] whether any changes have taken place.
#Repeat this experiment for the following [[solution]]s; [[Copper (II) Sulphate]], [[Sodium Chloride]] and [[Sodium Sulphate]].