Comparison of the growth of pea plants grown in light and in darknessObjective: To compare the vertical growth and weight gain of pea plants peas grown in light and dark. dark. Basic knowledge: Photosynthesis forms the basis of this experiment. This is the process by which a plant makes its food from the raw materials around it. The energy for photosynthesis comes from sunlight, which is the variable in this experiment. The substance that absorbs sunlight is chlorophyll, which is mainly contained in chloroplasts. This energy is used to convert carbon dioxide (CO2) and water into sugars. This conversion creates a waste product, oxygen, which is used by humans to breathe. Without photosynthesis, plants will stop growing and die. In a plant growing in darkness, chlorophyll will slowly be destroyed, allowing it to use its food reserves. Once the reserves are used, the plant will die. This is what happens in plants that are not grown in sunlight. Etiolation is a phenomenon that occurs in plants that are not grown in sunlight, whereby the stem of the plant elongates rapidly to increase the likelihood that the plant will find light. To achieve this etiolation the plant must use its food reserves, so if the plant does not find light after using these reserves, it will die. Planning: I plan to do an experiment over 3 weeks to know the effect of light on the plant. growth of pea plants. This will take place in a light-controlled environment, with equal amounts of plants grown in light and darkness. All elements of the experiment other than light will remain the same, such as the amount of seeds in each pot, the amount of soil in each pot, and the amount of water given to each plant each day. This will ensure a fair experience. Prediction: I predict that, in general, plants grown in light will grow better than those grown in darkness. To start with the