Many students think of the scientific method as a step-by-step process that all scientists follow in order. But real research is rarely so neat and tidy…it is really more of a research cycle or spiral because things you learn in one step can change your ideas about what you’ve already done or about next steps.
It is OK to change your thinking! We encourage you to go back and edit things you write in this section at any time as your ideas change. Just remember to ADD to your entries (put new stuff at the top) and don’t delete or overwrite anything you or other students in your group have written.
Click “edit project” to get started ------>
|Title||bhsdobsonfall2019 project 4|
|Access||public [View public profile]|
|Created||16 Sep 2019|
|Owner||BHS Dobson Fall 2019|
|Explore||We know that plants need soil, water, and light to grow from our experiences outside of school. In class we discovered that plants photosynthesize and preform cellular respiration. Where do plants get their mass from?|
|Research Question||Do different plants photosynthesize at different rates?|
|Predictions||We think that plants do photosynthesize at different rates because of their size. The bigger the plant the more light it can absorb, then is photosynthesizes at a faster rate than smaller plants.|
|Experimental Design||We put 3 grams of three different kinds of plants (Submerged, terrestrial, and floating) in Phenol Red and put them under a light for 24 hours to see which would photosynthesize at the highest rate.|
|Conclusion||We found that the Elodea (the submerged plant) performed photosynthesis at the highest rate. The Phenol Red with the spinach (the terrestrial plant) stayed the same and surprisingly, the the Phenol Red with the Duckweed (the floating plant) turned yellow. We believe the reason for this is because it performed cell respiration. The Elodea photosynthesized the most because in nature it is always underwater, causing it to be used to wet conditions.|
|Grade Level||High School Students (Grades 9,10,11,12)|
|School Name||Bristol High School|