The Violets

Project by group phsjonesfall2021

Explore From our past experiments we were able to learn about the process of photosynthesis and the necessary components needed for it, light and water along with carbon .
Research Question Does the kind of light bulb affect the rate of photosynthesis?
Predictions If we use incandescent light bulbs, then the rate of photosynthesis will increase because they use electricity in a wire instead of gases.
Experimental Design 1. pour 100 mL of 0.2% baking soda solution into a cup 2. plug in lightbulb to warm up 3. add 2 drops of soap solution into the cup as well 4. cut out 12 spinach leaf disks 5. use the leaf disk flotation method from class to sink leaf disks 6. pour disks into solution 7. put cup under light bulb 8. time for 10 minutes and record how many disks float to the top every minute 9. repeat steps with different bulbs
Conclusion The incandescent light bulb resulted in the highest rate of photosynthesis out of all the other types of bulbs. All the bulbs had a continuous rate of photosynthesis but at the end the incandescent bulb had the highest average after 10 minutes with a rate of 12.5 while the LED and fluorescent bulbs both had averages of 11.5. The reason for this must be because the incandescent bulb glowed the hottest.
Investigation Theme POS
Grade Level High School Students (Grades 9,10,11,12)
Teacher Name Christine Jones
School Name Powell High School
Session Fall 2021