| Explore | We know chloroplasts make plants green, and that plants require carbon dioxide and water and sunlight to survive. We know that the photosynthesize, and that the also differ from animal cells because they have plant cells. |
|---|---|
| Research Question | Will plants photosynthesize quicker with a more acidic pH level? |
| Predictions | The more acidic pH level, the better the plants will be able to photosynthesize. |
| Experimental Design | 1. add 300 mL of water to 1 tsp of baking soda 2. fill 3 cups with with the water, 100 mL each 3. set each cup to a different pH level cup1-8 cup2-6 cup3-4 4. put 10 leaf cut outs into each cup. 5. pull air from leaves with syringe so leaves sink 6. place in cup, make sure the leaves have sunken 7. record how many leaves have risen to the top of the cup after a period of 5 minutes. |
| Conclusion | We can conclude that the more acidic the pH level, the quicker plants will be able to photosynthesize. We came to this conclusion from our data. Cup 3, with a pH level of 4, which means it was more acidic caused 10 out of 10 leaves to come to the surface. Cup 2, with a pH level of 6, which means it's less acidic than Cup 3 caused only 5 leaves out of 10 to come to the surface. |
