| Explore | Plants grow by making their own food in a process called photosynthesis, which we have learned produces glucose from water, carbon dioxide, and sunlight. |
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| Research Question | I want to study how different intensities of light effect the rate of photosynthesis, I came up with this because I know photosynthesis requires light and I was wondering if their is a certain point a which it has a maximum amount. |
| Predictions | It is possible that the higher the light intensity the higher the photosynthesis rate, because it has more of the reactants so their can be more reaction. |
| Experimental Design | I will punch 10 spinach discs, then pull all of the air out of them by putting them in a vacuums made by a syringe. Then I will place them in a cup of baking soda and expose them to a light at different distances and record how many discs are floating every minute until 10 minutes |
| Conclusion | From the data I gather I can conclude that for the most part the greater the light intensity the greater the rate of photosynthesis, which can be explained by the fact that the more their is of the reactants the more there is of the product. In the future more heights and different types of leaves could be tested. |
| Investigation Theme | POS |
| Grade Level | High School Students (Grades 9,10,11,12) |
| School Name | South Doyle High School |
| Session | Spring 2018 |