| Explore | Vegetables usually require six to eight hours of sunlight a day. It also promotes vitamin D, which is a critical nutrient. Blue light helps plants with chlorophyll production. Red light helps with photosynthesis and plant growth. |
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| Research Question | What is the best light to help with germination and plant growth? |
| Predictions | I believe that natural sunlight is always the best for the plant as that is how they began to thrive on land. But also I think once the seed germinates the red light will promote more growth. |
| Experimental Design | We will test three different plants with three seeds of each. Using an seed starter (small pot) and soil we will measure in inches and days. We will be testing sunlight, red and blue light. Each will have an equal amount of light for 12 hours a day. The lightd have timers to turn off at dusk and on at dawn. The three seeds we will be testing are radishes, peas, and nasturtium. |
| Conclusion | Overall the red light was great for germinating and grow first and long, but the sunlight helped the stems stand up strong, the blue was the in-between. |
| Investigation Theme | WOS |
| Grade Level | High School Students (Grades 9,10,11,12) |
| School Name | ROWVA High School |
| Session | Fall 2019 |
| About this Project | The students that did this project went beyond just analyzing which plants germinated the quickest and grew the tallest during their experiment. They observed that maybe while red light caused the plants to germinate early and grow very tall, they were spindly. While natural light was the slowest at germinating, they grew more sturdy and healthy looking. Blue light produced an in between plant. These students did a great job journaling their experiment results and going beyond normal observation. |