| Explore | Plants need photosynthesis to grow. Plants produce oxygen and sugar. Cellular respiration is the process when a plant uses oxygen, sugar, and water to create cellular respiration. Plants can also have different things done to them to make them germinate faster. Seeds travel so they don't all plant in the same spot as the others. |
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| Research Question | How does the amount of time in light affect germination? |
| Predictions | If there is more time spent in light, the faster germination happens. We know this because the light is used for photosynthesis. If there is more light, then photosynthesis can happen easier and possibly faster. |
| Experimental Design | Have 2-3 buckwheat seeds in a petri dish each. There will be 9 Petri dishes total. Have 3 Petri dishes for each trial down. In each petri dish, there will be 2 square paper towels with 25 drops of water. Trial 1 will have no light exposure. Trial 2 will have 7 hours of exposure throughout the day. Trial 3 will have 24 hours' worth of exposure to light. In the end, we are going to use a ruler to measure how much the plant has grown in the amount of time under light. |
| Conclusion | Claim: If the seed is under 7 hours of light each day, then the seed will grow the most. Evidence: We know this because out of all the averages, the 7 hours of light grew the most on average. 24 hours had an average length of 0.11cm, 0 hours had an average of 0.08cm, and 7 hours had an average of 1.33cm. Reasoning: We think this happened because the 24 hours could have dried, and the 0 hours didn’t have light to grow in making it slower to germinate. It challenged our original claim of thinking 24 hours would grow the most. We thought that 24 hours would grow the most since it would be in light longer, therefore having more photosynthesis. I think it was a fair test, however we should have watered the seeds more depending on their needs. |
| Investigation Theme | WOS |
| Teacher Name | Evelyn Gray |
| School Name | DeWitt Middle School |
| Session | Spring 2022 |