| Explore | We know that plants intake carbon dioxide and use it and sunlight to perform photosynthesis, which is how the plant makes glucose and exhales oxygen back into the air. We have discovered that carbon dioxide is absolutely necessary for the plant to do photosynthesis by running an experiment in which leaves were put in normal water and shown light and then another cup of water had baking soda in it and shown light, and the one with baking soda prevailed. We are interested to see if the color of the light affects the leafs ability to produce photosynthesis. |
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| Research Question | We were curious about if different light colors and intensities affect the process of photosynthesis. We already know that light exposure and contents in water affect how plants perform photosynthesis but we wanted to know about how the color and intensity affects the results. |
| Predictions | We think that the outcome of our study will be that the brown, more intense light of will produce photosynthesis faster than the ones we used in the experiment with water vs. baking soda. This is because the brown light is most similar to the sun and produces heat along with the brown light. |
| Experimental Design | We will cut out ten 3cm disks of the leaves and then extract the oxygen out of the leaves and put them each in a glass of water that has one teaspoon of baking soda in it. We will then shine an led light one one glass and a non led on another for 15 minutes and record for many leaves are floating after each minute. The independent variable in this situation is the type of light going towards the glass. The control is: the amount of water (3 cm), time exposed to light (15 mins), amount of baking soda (1 tsp), number of leaves in the glass (10), and size of the glass. We will record the data on a line graph showing how many leaves are floating at each minute in each glass. |
| Conclusion | In conclusion, the LED lights help plants produce photosynthesis faster. The line graph proves that the disks in the glass under the LED lamp had more floating leaves than in the other glass. A possible explanation for this is because LED lights are more efficient and a lot brighter than other lights. Since the LED is brighter it must have prodded more photosynthesis in the glass that was placed beneath it. |