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Photosynthesis Investigation Aim: The problem we are trying to solve is the how a variable can affect the rate of photosynthesis, whether it is light intensity, CO2 concentration or the temperature of the water that the pond weed is submerged in. Planning: * Variables: We have 3 main variables: light intensity, CO2 concentration and temperature of water. The light intensity will affect the experiment significantly due to the fact that light energy is needed for photosynthesis to occur. Without light energy there will be no photosynthesis. CO2 concentration will also affect the experiment because a plant takes in carbon dioxide and is the key ingredient for photosynthesis to happen. Temperature of the water will have a slight affect on our results because of the presence of enzymes in plants. Having the temperature too high will kill the enzymes causing them to denature, having the temperature too low and the enzymes will not work at their...

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