| Explore | |
|---|---|
| Research Question | Research Question: What is temperature's effect on Photosynthesis? |
| Predictions | Predictions: Room temperature will have the highest rate of photosynthesis because being too cold or hot will denature the cells. |
| Experimental Design | Experimental Design (Materials & Methods): Materials: -hot plate -hot mitts -ice cubes -syringe -3 beakers (around 200-300 ml) -3-4 leaves -high-powered lamp -hole puncher -distilled water -baking soda -stopwatch/clock -3 blank labels -liquid soap Fill three beakers with 200 ml water. One have water with ice, one room tempreature, and one boiling water. Cut 30 different leaf disks. Add 1-2 drops of soap into each cup. Place 10 leaf disks in a syringe, and suck in a little water from the cold water beaker. Repeatedly put your finger on the end suck in the air until all of the leaf disks aren’t floating. Repeat 4 and 5 for the room temperature and hot water beakers. Pour each set of 10 disks into the beakers corresponding to their temperature. Place each beaker under a high power lamp. Turn on the lamp, and every 2 minutes record how many leaf disks are floating for 20 minutes. |
| Conclusion | |
| Investigation Theme | POS |
| Grade Level | High School Students (Grades 9,10,11,12) |
| School Name | Columbia Grammar and Preparatory School |
| Session | Fall 2017 |