Photosynthesis: Pondweed and Dessert Leaf Experiment
In a science lesson before the half term break, we did a practical lesson using pondweed and a lamp. Unfortunately, we didn't get the results we wanted because it was winter and our lamps were not powerful enough but we found an image that shows what should have happened. However, we had a much more successful experiment that shows how leaves can preserve more water. Pondweed Experiment: The experiment is supposed to show how photosynthesis works with the lamp acting as the sun. The plant in the water is placed in next to the lamp and should make bubbles (oxygen leaving the plant as a result of photosynthesis) and as the lamp is put further away, the amount of bubbles the plant makes should decrease. This photo is from our pondweed experiment where we have one bubble circled in red. We expected a lot more bubbles but at most; only had three. How photosynthesis works is outlined in the following equation: carbon dioxide + water, activated by light energy and chlorophyll = glucose a...