My Shortlisted Essays
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hydrogen peroxide and potatoe experiment
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An investigation into how the amount of oxygen is produced by changing one variable effects the decomposition of Hydrogen Peroxide in the presence of the enzyme. Hydrogen peroxide Water + Oxygen 2 H2O2 2H2O + O2 This shows us that when the H2O2 has reacted with the catalyst this is what it produces. There are many ways in which the amount of oxygen produced could be affected. I believe that, surface area of the chip, temperature of liquid that is reacting, the concentration of the liquid or the amount used are going to be the major... 
it was the best we were going to get, I think contamination was minor so that did not cause a problem. One problem with our preliminary experiments was that we had to change the Hydrogen peroxide because we felt that some were to old, and were probably not as concentrated. This could of seriously effected our main experiment with using one chemical but out of several bottles, to eliminate this we must get one bottle big enough for the whole experiment and use that one only; so that there is no change in the quality of the H2O2.
it was the best we were going to get, I think contamination was minor so that did not cause a problem. One problem with our preliminary experiments was that we had to change the Hydrogen peroxide because we felt that some were to old, and were probably not as concentrated. This could of seriously effected our main experiment with using one chemical but out of several bottles, to eliminate this we must get one bottle big enough for the whole experiment and use that one only; so that there is no change in the quality of the H2O2.
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