| Explore | From our outside knowledge, we know that plants need water and sunlight to survive and that they produce oxygen. From our in-class learning, we know plants do photosynthesis by taking in CO2, water, and sunlight to create glucose and oxygen. We also know from our in-class learning that plants use glucose for energy. We also learned partially about how seeds germinate by taking in water which starts the process and how seeds use some glucose stored by their parent plant. The question that we are interested in is how different types of water (freshwater, salt water, sugar water, distilled water) affect the rate of germination. |
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| Research Question | We want to see if the type of water (fresh water, salt water, sugar water, distilled water) affects the rate of germination for a seed. We came up with this question because we know that seeds need water to begin germinating. |
| Predictions | Some water will work and some won't. Salt isn't good for stuff so we believe that it wont make the germinate. |
| Experimental Design | Place ten seeds in each petri dish with a paper towel. Once a day spray each petri dish with the assigned different types (distilled, regular, salt, and sugar water) of water. |
| Conclusion | Pure fresh water is the best water to make mustard seeds germinate. The reason for this is that most seeds require fresh water to begin the germination process. The data we collected, along with other scientific ideas, support our claim. To expand the results of this experiment could be trying this with more types of liquid. |
| Investigation Theme | WOS |
| Teacher Name | Evelyn Gray |
| School Name | DeWitt Middle School |
| Session | Spring 2023 |