The first method we did, otherwise known as the Winkler Method, was a lot less accurate than the Vernier Method. This is because there was a lot of room for error and not every measurement was completely exact. The Winkler Method included many steps with exact measurements, which can lead to many errors in the experiment. For example, if we needed eight drops of alkaline iodide into the sample bottle, it was very easy to drop more than the needed amount into the solution. This method was also very time consuming because there were many steps to complete before getting the amount of dissolved oxygen. The Vernier method was much more affective and time efficient because the probe shows exact results to the hundredths place and we got a reading within a few seconds.
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