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| Research Question | Our research question is: how does water pollution in the form of diluted and pure acid affect the growth/germination of radish seeds? |
| Predictions | We predict that the more acid we give the seeds, the more the seeds will change colour (yellow/brown), shape (curl and shrivel), texture (squishy but rough), Height (smaller than usual size), and the growth rate (reduced/decreased) . |
| Experimental Design | 1. First, we will set up the plant chambers using the bottom of plastic pots to hold the radish seeds. 2. Then, we are going to soak the seeds with 3 centimeters of water overnight for the seeds to begin germination. 3. Our group will plant the radish seeds, after they have soaked, at the bottom of the 3 pots. a) Constant Variable: We will give one set of seeds (labelled '#1 Controlled') its proper amount of water, sunlight, heat, and soil. b) Independent Variable 1: We will give another set of seeds (labelled '#2') a proper amount of sunlight, heat, and soil, but we will not give the plant any water but acid (acidity level 4 on the Ph scale) instead. c) Independent Variable 2: We will give the last set of seeds (labelled '#3') a proper amount of sunlight, heat, and soil, but we will not give the plant any water, but acid (acidity level 2 on the Ph scale) instead. 4. Fourthly, we are going to study the growth/germination (color, shape, texture, height of the seedling, and any other anomalies of the plant). |
| Conclusion | We concluded that if we watered radish seeds with lower Ph levels of acid, then the taller the seedlings grew, and the more seeds sprouted above the surface of the soil. The reason we came to this conclusion was that the tallest seedlings we gave Ph level 2 acid (pot #3) grew an average of 3.6 centimeters, the tallest seedlings that we gave Ph level 4 acid (pot #2) grew an average of 2.9 centimeters, and the tallest seedlings that we gave water (pot #1) grew an average of 2.75 centimeters. The other reason was that an average of 9 seeds sprouted in pot #3, an average of 7 seeds sprouted in pot #2, and an average of 6 seeds sprouted in pot #1. |
| Investigation Theme | WOS |
| Grade Level | High School Students (Grades 9,10,11,12) |
| School Name | Orillia Secondary School |
| Session | Spring 2017 |
