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The term describes the grouping of particles of a certain grain size. There is no internationally valid definition. In German-speaking countries, for example, there are the fraction groups fine soil, fine skeleton and coarse skeleton, which in turn are subdivided into main fractions (e.g., clay, silt, sand, gravel).
A method of mowing grass whereby only the top part of the grass is cut, very frequently, and the cuttings are allowed to decompose back into the soil. This method reduces time, money, and energy spent cutting, collecting, and disposing of cuttings, and is healthier for the grass and soil.
The granulation describes the classification of grains and particles according to their grain size. The grain sizes are divided into the following groups (from large to small): stones, gravel, sand, silt and clay. The science of determining, describing and interpreting the grain size is called granulometry.