| Explore | We know about plants that they are green because of the chloroplasts in the leaves. Also we know that they breath carbon dioxide and exhale oxygen which is called photosynthesis. we do the opposite respiration. We have discovered in class that plants help us breath and eat in our daily lives. the questions that interest us is if different plants will react to different elements such as sodium and calcium. |
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| Research Question | They are green. That some of them can be poisonous. Some plants include poison ivy, poison oak, and some thorn bushes can be poisonous. The breath in Carbon Dioxide and exhale Oxygen while we breath oxygen and exhale Carbon Dioxide. We have discovered in class the steps of Germination, Photosynthesis, and Biological Magnification. The questions that interest us are how different seeds will react to sodium and calcium water. |
| Predictions | The possible out comes are that the seeds will germinate faster or slower from the calcium or sodium. The explanation is that they different elements will have a different effect on different seeds. |
| Experimental Design | Lab Procedure Dom, Bri, Nick Inquiry Question: Do different elements effect different seed germination. Hypothesis: The sodium mixture will increase the rate of germination, the calcium mixture will slow the process of germination. Materials: Alfalfa and Nasturtium seeds Water Calcium tablets Sodium Paper towels 6 petri dishes Procedure: Dissolve the calcium tablets and salt in two different beakers. Put the same number of Alfalfa and Nasturtium seeds in two sets of 3 petri dishes. Get six different paper towels. Soak two in the salt water, two in the calcium water, and one in regular purified water for a control. Put the paper towels over the seeds in the dishes and cover them.* Monitor the seeds and collect data. *we will re-soak the paper towels every other day. |
| Conclusion | From our lab we can conclude that calcium germinates faster than water and salt stops the completely. The different chemical make up of calcium has a different effect on germination. With our hypothesis, we figured that salt would slow things down because it dries faster. A future experiment we could do is to combine the salt and calcium and see what the effects are. |
| Investigation Theme | WOS |
| Grade Level | Middle School Students (grades 6,7,8) |
| School Name | St. Sebastian School |
| Session | Spring 2017 |
