From Kitchen to Garden: Investigating Which Rice Water Promotes the Healthiest Pinto Beans (Phaseolus vulgaris)
Plants and the Environment- Grade:
- 6
- Teacher:
- Shermaine Dela Rosa
This experiment tested how different types of rice rinse water affected the growth of pinto beans (Phaseolus vulgaris). The treatments included white rice water, brown rice water, basmati rice water, and distilled water as the control. Plant growth was measured using plant height (cm), leaf color rating, leaf color using a colorimeter, and germination rate. The null hypothesis stated that there would be no difference in growth among the water types, while the alternative hypothesis stated that the type of water would affect pinto bean growth. The results showed that pinto beans watered with distilled water grew the tallest, with an average height of 21.78 cm. Brown rice water produced moderate plant height (13.72 cm) and healthy leaf development. White rice water produced the darkest green leaves based on the visual leaf color rating. In contrast, basmati rice water resulted in the lowest growth and germination, with most seeds failing to sprout or develop leaves. These findings supported the alternative hypothesis because the different water types produced noticeable differences in plant height, leaf color, and germination. Overall, the experiment showed that rice rinse water can influence plant growth, especially brown and white rice water. However, distilled water still produced the tallest plants. This study suggests that leftover rice water may be a useful and natural option for supporting plant health, depending on the type of rice used.
Great job on this project. I really liked how clearly you explained your idea and showed what you observed. You put good thought and effort into your work, and that came through in your presentation. Keep it up.
Your project creatively explores a sustainable gardening practice by testing rice rinse water as a natural fertilizer. You designed a clear and controlled experiment with thoughtful measurements of plant growth and health. Your discussion shows a good understanding of the results and their implications. Your work has great potential to inspire eco-friendly gardening in your community—well done!
Your project thoughtfully investigates an everyday kitchen waste—rice rinse water—as a natural and sustainable way to support plant growth. You designed a well-controlled experiment with careful measurements of plant height, leaf color, and germination, showing strong attention to detail. Your discussion clearly interprets the differences between rice types and their effects on pinto beans, demonstrating solid scientific understanding. Expanding your experiment with more plants and a longer timeframe could provide even deeper insights. This practical and eco-friendly approach has great potential to encourage sustainable gardening practices in your community. Excellent work!