| Explore | So far, we have learned that osmosis is the diffusion of water in cells. In celery, different cells inside absorb water differently. This can cause shriveling of the stalk. |
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| Research Question | In the next experiment, we are trying to figure out how to make the curliest celery possible using water. |
| Predictions | We believe the best possible way to make curly celery would be to cut very thin strands and let them soak in water with a high salt concentration for a long period of time. |
| Experimental Design | Supplies: Clear glass Celery stalks 6 table spoons of salt 1 cup of water Control Variable: A thin slice of celery in plain water Independent variable: The amount of salt in the water Dependent variable: Curliness of the celery |
| Conclusion | Claim: The curliest celery can be made by cutting thin, mid-range length celery and putting this into regular water. Evidence: The evidence is the at when the celery was left in regular water, it curled. Unlike the celery in regular water, the celery in salt water gained so much flexibility that it couldn't hold a curl. Reasoning: The reason the thin celery in regular water worked the best is because the less width the celery has, the more pliable it will be than a piece of celery with more mass. The reason that it is better to use regular water is that the salt water causes too much flexibility to hold a curl. |
| Investigation Theme | CEL |
| Grade Level | High School Students (Grades 9,10,11,12) |
| School Name | Ottawa Township High School |
| Session | Fall 2020 |