When you run your thumb through it, sandy soil crumbles. Clay particles are very fine (small) and clay soil feels sticky when you squeeze it in your hands. Clay soil forms a ball very easily ...

An ideal topsoil, called loam, is soft and crumbly and has roughly equal parts sand, clay and silt (a fine, dust-like ...

Different soils have different properties depending on their composition. Sandy soil is pale coloured and has large particles. These create lots of small air gaps. Water drains through them easily ...