| Explore | Does the light’s distance from the plant affect it’s ability to photosynthesize? Does the intensity of the light? |
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| Research Question | Will a plant further away from the light further from the light grow less than a plant closer to the plant? |
| Predictions | The closest one will grow best because there is more intense light hitting the closest plant. |
| Experimental Design | Put one plant at 1 foot away from the light, one plant at 2 feet, and one plant at 3 feet. 1. Fill 3 cups with 300ml of water and 1 gram of baking soda each. 2. Use a syringe to create a vacuum and release all the carbon dioxide from 30 leaf disks. 3. Place 10 disks into each cup 4. Place the cups in front of the light, each 1 foot further from the light. 5. Record how many leaf disks rise in each cup every minute for 15 minutes. 6. Repeat steps 1-5 5 times. |
| Investigation Theme | POS |
| Grade Level | High School Students (Grades 9,10,11,12) |
| Teacher Name | Erica Shannon |
| School Name | Elkhart High School |
| Session | Fall 2021 |