Lab Report: Photosynthesis

Lab Report: Understanding Photosynthesis Hypothesis: Plants exposed to more light will produce more oxygen and grow faster than plants in low light conditions. Materials: - 4 aquatic plants (Elodea) - 4 test tubes - Light source - Timer - Ruler Procedure: 1. Placed one plant in each test tube filled with water 2. Positioned tubes at different distances from light (10cm, 30cm, 50cm, darkness) 3. Measured oxygen bubbles produced over 30 minutes 4. Repeated measurement 3 times for each condition Results: - 10cm from light: Average 45 bubbles/30min - 30cm from light: Average 28 bubbles/30min - 50cm from light: Average 12 bubbles/30min - Darkness: Average 2 bubbles/30min Conclusion: My hypothesis was supported. Plants closer to the light source produced significantly more oxygen, demonstrating that light intensity directly affects the rate of photosynthesis. The plant in darkness produced minimal bubbles, likely due to cellular respiration rather than photosynthesis.