Question

Max has been assigned a science fair experiment and must research a topic related to photosynthesis . After looking at the equation for photosynthesis he notices light is listed as shown below :

Photosynthesis Respiration: 6 CO 2 (Carbon dioxide) + 6H20 (water) ➡️(Light)(Chlorophyll) C 6 H 12 O 6 (sugar) + 6O 2 (Oxygen).

Max chooses to explore the effects of light on plant growth . He places three sunflower seedlings in three separate pots . He allows them to grow for 2 weeks and measures the growth of each plant . The pot that was placed in his basement , where no light reaches , grew 2 cm . The plant in his kitchen was a few feet away from a window that allowed some light in . The plant in the kitchen grew up to 20 cm . Last of all , the third pot which sat directly in the windowsill grew up to 30 cm .

Using the information gathered by Max answer the following question .

Question : How does light affect plant growth ?

Claim:

Evidence:

Reasoning:
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Answer 1

Light is crucial for plant growth as it is required for photosynthesis. Max's experiment showed that plants that received more light grew significantly taller, indicating that light intensity positively correlates with growth due to its role in enabling photosynthesis.

Step-by-step explanation:

Effect of Light on Plant Growth:

Claim: Light significantly affects plant growth by providing the energy necessary for photosynthesis.

Evidence: In an experiment by a student named Max, three sunflower seedlings were grown under different light conditions. The seedling in the basement with no light grew only 2 cm, whereas the one in the kitchen a few feet from a window grew to 20 cm, and the one directly on the windowsill reached 30 cm in height.

Reasoning: Photosynthesis requires sunlight to convert carbon dioxide and water into glucose and oxygen. The growth disparity among the seedlings shows that light availability directly influences photosynthesis rates and therefore plant growth. Plants receiving more light had increased photosynthesis, leading to more growth. The absence of light in the basement restricted photosynthesis, stunting plant growth.

Answer 2

hi

Step-by-step explanation: