If you mean a bundle of sheaves (of wheat or barley, for example) - the word you want is stook.
A large pile is called a heap or a mound.
Pile.
No, a pile of newspapers is typically called a stack or pile, not a bundle. Bundles are usually groups of newspapers that are wrapped or tied together for distribution.
It is called a pile
A single 'piece' of sand is called a 'grain'.
A pile of things can be called: mound - an amount of something in a pile heap - a large pile of something, especially an untidy pile stack - a pile of things placed one on top of the othe mountain - a large pile or amount of something pyramid - a pile of things arranged in the shape of a pyramid bank - a long pile of earth, snow, or sand drift - a large pile of snow or sand formed by the wind wad - a thick pile or ball of papers, money, or thin cloth
Rouleau
cairn
Midden
Rouleau
a rouleau
snowdrift