If the soil holds together in a firm shape like plasticine, it will be mainly clay. This has the smallest size particles of the three soil types.
Clay soils can be found in varying colours from white and grey through to brown and dark orange-red. This colour range is reliant on the contents of the soil in which it forms.
If the soil holds together reasonably well but is slightly crumbly, it is probably a silty soil. Its soil particle size is somewhere between clay and sandy. Usually found near waterways, having been deposited by slow-flowing water.
If the soil is crumbly and has sand particles throughout, it is a sandy soil. It has the largest particles of the three soil types.
Loam soil has the best features of all the soils.