Abstract
This experiment investigates the effect that acid rain (simulated by altering the pH of the water using 0.5 molar Hydrochloric acid) has on the photosynthetic rate of the aquatic plant Egeria densa. For this experiment I used a dissolved oxygen probe to measure the dissolved oxygen content of the water with an altered pH. By tracking the dissolved oxygen content of the water I was able to monitor the photosynthetic rates of the plants with the knowledge that high levels of dissolved oxygen indicate a high rate of photosynthesis (the higher the dissolved oxygen content, the higher the photosynthetic rate of the plant). I conducted this experiment on 15 individual sprigs of Egeria densa, monitoring each sprig using the dissolved oxygen
This experiment investigates the effect that acid rain (simulated by altering the pH of the water using 0.5 molar Hydrochloric acid) has on the photosynthetic rate of the aquatic plant Egeria densa. For this experiment I used a dissolved oxygen probe to measure the dissolved oxygen content of the water with an altered pH. By tracking the dissolved oxygen content of the water I was able to monitor the photosynthetic rates of the plants with the knowledge that high levels of dissolved oxygen indicate a high rate of photosynthesis (the higher the dissolved oxygen content, the higher the photosynthetic rate of the plant). I conducted this experiment on 15 individual sprigs of Egeria densa, monitoring each sprig using the dissolved oxygen