Investigating the Effect of Light on Plant Growth
A Simple Experiment Using Bean Plants
Objective:
To determine how varying amounts of light affect the growth rate and health of bean plants.
Materials:
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3 identical pots
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Bean seeds
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Potting soil
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Watering can
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Measuring scale
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Ruler
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Access to natural or artificial light
Procedure:
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Fill all three pots with equal amounts of soil.
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Plant 3–5 bean seeds in each pot at the same depth.
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Place the pots in different lighting conditions:
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Pot A: Full sunlight
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Pot B: Partial sunlight
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Pot C: No light (dark room)
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Water each pot equally every day.
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Record the growth (height in cm) of plants every 2 days for 2 weeks.
Conclusion:
The results support the hypothesis. The plant receiving full sunlight showed the greatest growth, while the one kept in the dark exhibited minimal development and yellowing leaves.
Further Questions:
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Would the results change with different plant species?
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How does light spectrum affect plant growth?
