1. How does the increase of NPK fertilizer affect the levels of dissolved oxygen in different water samples with filamentous algae? Dolf, Murphy, Stephanie, Sophie

2. Description of Experiment

3. Variables/Raw Data Initial Final

4. Graphs/Analysis

5. Increase in NPK  decrease in dissolved oxygen levels Plant life  consuming more and more oxygen Detrimental to environment Amount of algae / water weight Fluctuations in dissolved oxygen levels Outliers Conclusion