t of volts being added to the Electrolysis circuit will increase the amount of copper being attracted to the negatively charged carbon rod (cathode).
             In my investigation I plan to change the amount of volts passing into the copper sulphate solution.
             I could have chosen to change many different variables such as: -
             • Concentration of copper sulphate solution
             • Temperature of copper sulphate solution
             • Voltagecurrent passing through
             • Material from which electrodes are made
             To keep it a fair test I will make sure that the carbon rods are kept the same distance apart throughout all the experiments and also make sure that the experiment is left for 8 minutes every time. For safety precautions I will wear my safety goggles throughout the experiment. In the investigation I will measure the amount of Copper being attracted to the cathode in 8 minutes I will do this by measuring the weight of the carbon rod before and after each different experiment. The amount of voltage used in the experiment will range from 4-12 volts; we plan to do two repeat sets of results. To be accurate about the amount of volts passing through the circuit we will use a voltmeter to measure how many volts are actually going through.
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