An individual grain is usually a millimetre or less. A beach of sand might be metres deep, or just a few millimetres.
A tiny piece of sand is called a grain of sand.
A thick piece of wood is commonly referred to as a plank.
to keep out sand during sand storms :)
it's called a peice of string
Identical to that of a piece of string, but not as thick.
depends on the piece of lead.
A thick piece of wood is called a plank. It is a long, flat piece of wood that is often used in construction or woodworking projects.
chunk
Sand Cats have thick fur to insulate against the extremely high temperatures in the desert. They allso have fur on the bottom pads of their feet to stop the sand burning their feet and to also protect them.
Silica is sand dust.
Homes in the desert often have thick walls and small windows to keep out the sand. If there are too many openings the sand can accumulate quite rapidly.
Typically, cardboard is lass than 0.4 cm thick.