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The effect of altering the light intensity on the rate of photosynthesis of the aquatic plant Elodea Data Analysis So that accurate conclusions can be come to we must first put our results into a table of values. Distance of lamp from plant (cm) Light intensity (lux) Length of bubble after 5 mins (mm) 5 4000 77 72 68 23 67 59 10 1000 3 30 27 22 26 21 15 444.4 15 10 16 14 9 9 30 111.1 4 3 3 2 10 4 50 40 1 2 2 1 1 2 We must now find an average bubble length for each distance, which we can use to draw a graph. However care must be taken when working out the averages. We must exclude any readings that are anomalous from the others to ensure the results are as reliable as possible. Distance of lamp from plant (cm) Light intensity (lux) Length of bubble after 5 mins (mm) Average bubble length (mm) 5 4000 77 72 68 23 67 59 68.6 10 1000 3 30 27 22 26 21 25.2 15 444.4 15 10 16 14 9 9 12.2 30 111.1 4 3 3 2 10 4 3.2 50 40 1 2 2 1 1 2 1.5 Now, so that we are able to make conclusions we must put the results into graphs. To find any more relationships we must then compare the length of bubble to the light intensity. Conclusion After putting the results into graph...

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