Amrita's soil test demonstrates the phenomenon of soil stratification, as indicated by the distinct layers of different thicknesses observed in the sealed jars after 24 hours.
Amrita's soil test involves the process of soil stratification, which occurs when different soil particles settle into distinct layers based on their size and density. After collecting soil samples from three different schools and placing each sample in its own jar with water, she observed the formation of three distinct layers of varying thicknesses in each sealed jar after 24 hours. This stratification is a result of the settling behavior of soil particles in water, with heavier particles sinking to the bottom and lighter particles remaining suspended or forming an upper layer.
The phenomenon of soil stratification is significant in understanding the composition and characteristics of soil. Different layers may contain varying proportions of sand, silt, clay, and organic matter, influencing factors such as drainage, nutrient availability, and overall soil fertility. Amrita's observation of layered soil samples provides insights into the diverse nature of soils in different school environments, reflecting variations in soil composition and potential implications for plant growth and ecosystem health.