| Explore | We know that plants sprout from seeds and that plants have to have three things in order to thrive and survive. 1. Sunlight 2. Water 3. Carbon Dioxide Also, plants change the carbon dioxide and water into carbohydrates and oxygen. Plants release oxygen so that humans can breathe. |
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| Research Question | How does the amount of water given to a seed in a week affect how fast the seed germinates? |
| Predictions | If you use one teaspoon one and a half teaspoon and one tablespoon of water. The one given one tablespoon is going to germinate better. |
| Experimental Design | 1. Put a paper towel in a Petri dish 2. Add the measured amount of water onto the paper towel and repeat until all Petri dishes have the right amount of water (1 tsp, 1 1/2 tsp, 1 tbs) 3. Put 10 Round Radish seeds in each Petri dish 4. Every other day for a week add the correct amount of water to each Petri dish 5. Observe all the seeds every day for a week and record how fast they will germinate 6. Compare data |
| Conclusion | The more water there is the faster the seed germinates. When we put 1 tsp of water onto the seeds, the final number of seeds that germinated was 9. When we put 1 1/2 tsp of water onto the seeds, the final number of seeds that germinated was 10. When we put 1 tbsp of water onto the seeds, the final number of seeds that germinated was 10. This happened this way because in order for a seed to germinate it has to have a lot of water absorbed into it so that the shell of the seed can break open which then causes the seed to be able to start to germinate. So if the seed has more water in it then the shell will break open faster so that the seed that has the most water can start to germinate before the ones that had a little bit of water had a chance to germinate. |
| Investigation Theme | WOS |
| Grade Level | Middle School Students (grades 6,7,8) |
| School Name | DeWitt Middle School |
| Session | Fall 2019 |