| Research Question | How does the temperature affect the rate of photosynthesis? |
|---|---|
| Predictions | If the temperature is between 25 degrees-46 degrees then the rate of potosynthesis would increase because there is Carbon Dioxide in warmer liquid. |
| Experimental Design | Step Process for 25 degrees C 1. Fillcpwth 100ml of water 2. Put 1g of baking soda in water 3. Turn on light source 4. Punch out 12 chads with hole puncher 5. Put 12 chads in syringe with baking soda water 6. Leaf disk floatation method 7. Put chads and baking soda water into the cup 8. Put cup under light for 10 minutes (record every minute) Step Process for 4 degrees C 1. Fill cup with 100ml of water 2. Put 1g of baking soda in water 3. Add ice and wait till temperature needed (4 degrees C) 4. Repeat steps 3-8 Step Process for 46 degrees C 1. Fill glass beaker with 100ml of water 2. put 1g of baking soda in water 3. Put glass beaker on hot plate and wait till temperature needed (46 degrees C) Once at temperature remove beaker. 4. Move water from beaker into cup 5. Repeat steps 3-8 Step Process for 100 degrees C 1. Fill glass beaker with 100ml of water 2. Put 1g of bakin soda in water 3. Put Beaker on hot plater and wt till temperature needed (100 degrees C) once at temperature remove beaker 4. Move water from beaker to cup 5. Repeat steps 3-8 |
| Conclusion | In our temperature experiment, our hypothesis was that warmer water would produce a higher rate of photosynthesis because of the higher level of carbon dioxide. Our hypothesis was correct, because during the 67*C trial, the chads rose the quickest, producing the highest rate of photosynthesis, During the trials with the cooler water temperatures, not as many chads rose. |
| Investigation Theme | POS |
| Grade Level | High School Students (Grades 9,10,11,12) |
| School Name | West High School |
| Session | Spring 2019 |