| Explore | We know that plants do photosynthesis in all kinds of environments. In class we discovered that plants have to have carbon dioxide to do photosynthesis. |
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| Research Question | Will photosynthesis still occur with a lens wipe over the cup? We came up with this by looking at the environment and seeing what might affect plants. The question fits what we know about the topic because ours affects the light, which we already know is needed to perform photosynthesis. |
| Predictions | Possible outcomes of our study are that photosynthesis could occur with the lens wipe covering the cup or it could not occur at all because the wipe would be blocking out the light. I think photosynthesis will work the same. I think it will still happen because the spinach disks will still be getting light. |
| Experimental Design | Our plan is to add lens wipes over a cup with spinach disks inside. We will have 1 cup, 12mL of water inside the cup, 1 table spoon of baking soda, and a lamp 4 1/2 inches away from the cup. Also 10 spinach disks with oxygen drained out of them. We will record our data by checking how many disks are floating every minute, for the duration of 10 minutes. The constant variables are the 125mL of water, 10 disks, 1 table spoon of baking soda, and the cup. |
| Conclusion | We can see that heavier clouds absorb more light than thin clouds, so they help plants perform photosynthesis better. When we used one lens wipe it kept the light out of the cup so less disks could do photosynthesis. The heavier clouds absorb more sunlight, so the two lens wipes absorb light. Another experiment we could do to expand the results is to see if clouds or no clouds help more with photosynthesis. |
| Investigation Theme | POS |
| Grade Level | High School Students (Grades 9,10,11,12) |
| School Name | Ottawa Township High School |
| Session | Fall 2018 |