... dioxide into glucose and oxygen. Both animals and plants for respiration use oxygen produced by photosynthesis. The word equation for photosynthesis is: Carbon dioxide + Water Glucose + Oxygen The balanced chemical equation for photosynthesis is: 6CO2 + 6H2O C6H1206 + 6O2 A water plant is ideal for doing this experiment because it can photosynthesise in the water and when it does it produces oxygen bubbles, which can be counted easily. I am going to use Elodea (Canadian pondweed) for my experiment because it is a water plant and therefore when it photosynthesises I can count the number of oxygen bubbles it will produce. KEY FACTORS The factors that can be changed in this investigation are: * The amount of leaves - I can change the number of leaves, thus varying the amount of chlorophyll, on the Canadian pondweed plant and see how many oxygen bubbles it produces. * Amount of carbon dioxide - I can change the ...

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