... a fair test I will: * Monitor the room temperature * Use the same volume of H2O2 & same pH * Same batch/age/brand and freshness of potato * Same diameter of potato * Same ruler * Same person measuring each time, from the same level RATE OF REACTION If we assume that: The length of potato=amount/volume of enzyme and The height of oxygen=volume of oxygen Then we can work out the rate of reaction. Rate= Amount of product Time PREDICTION We will be looking at Hydrogen Peroxide (H2O2) being broken down into (H2O) and Oxygen (O2). We will also investigate the factors that change the rate of reaction. I predict that the amount of H2O2 and the amount of catalase in the potato (length) will affect the rate of reaction. I think that the longer the potato, the reaction should be faster because there is more catalase therefore there are more active sites for the substrate to join with. I also think that increasing the H2O2 will ...

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