| Explore | We have already learned that osmosis occurs in different cells in the celery at different times or paces. |
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| Research Question | We are trying to answer if the celery without the skin will become curly compared to the celery with the skin. We came up with this question because we wanted to find out how the cells change the entire celery stalk and how it makes it curl. |
| Predictions | We think the curliest celery will be given to us when we put a piece of celery in water when it has the outside layer peeled off instead of the celery that has the outside layer still on and is submerged in water. I think the results will be that the celery with the outside layer on will be softer and squishy but not curly, and I think that the one with the outside layer off will be able to curl. |
| Experimental Design | Our supplies we will be using are 2 pieces of celery (one with the skin and one without), each 3 inches, and 2 cups of the same amount of water. Our control variable is the size of the celery and the amount of water used. Our independent variable is the skin that is taken off of one of the celery sticks. And lastly, our dependent variable is how curly the celery is at the end of the experiment. |
| Conclusion | We found out that taking off the skin of the celery doesn't make it curl. In fact, it made it bigger than the one with skin. We believe the celery without skin grew because the cell wall helped regulate how much water came in, and without the skin the celery was filled with too much water, causing the term hypertonic to take place, which caused the celery to grow. |
| Investigation Theme | CEL |
| Grade Level | High School Students (Grades 9,10,11,12) |
| School Name | Ottawa Township High School |
| Session | Fall 2020 |