Photosynthesis | Experiment 1 - Photosynthesis: How does light affect plant growth?
Experiment 1
Photosynthesis: How does light affect plant growth?
Purpose/Hypothesis
This experiment deals with the concept of photosynthesis and how different wavelengths of light affect plant growth. Plants contain different pigments, including chlorophyll, carotene, and xanthophyll, so they can respond to different wavelengths. In this experiment, three different colors of light will be used to grow plants. The three colors will represent different wavelengths of light: red—long; yellow—medium; and violet or blue—short. A fourth plant will be grown under a white light, which contains all wavelengths. The amount of growth for each plant will demonstrate which color light promotes the most plant growth.
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