What is the correct order of soil particles from smallest to largest?

The correct order of soil particles from smallest to largest is clay, silt, and sand. This hierarchy is based on the particle size: clay particles are the tiniest, with a diameter less than 0.002 millimeters, giving them a high surface area relative to their volume. This property allows clay to absorb water and nutrients effectively, which is crucial for plant growth.

Following clay, silt particles measure between 0.002 and 0.05 millimeters in diameter. Silt retains moisture but drains better than clay, making it a vital component in fertile soil. Lastly, sand has the largest particles, with a diameter ranging from 0.05 to 2 millimeters. Sand allows for excellent drainage but does not retain moisture as well as clay or silt.

Understanding this order is crucial for comprehending soil composition and its implications for agriculture, erosion, and ecosystem health.