"Chalks" Natural Recordings by Native Speakers
Chalks are small, soft, white sticks or sticks made of a clay-like substance called limestone, used for marking or writing on a surface, typically a blackboard or canvas.
Chalk is a soft, white, porous sedimentary rock that is often used to write or draw on a blackboard or other smooth surface. It is typically made from the fossilized remains of tiny marine plankton, such as coccolithophores, and is often banded or layered. Chalk is a popular material for art projects, especially in schools, and is also used in outdoor games and activities, such as hopscotch and street art. In addition, chalk is sometimes used in construction and landscaping to line paths and driveways.