What is the difference between cement and concrete? cement needs more water to mix it concrete has stones mixed in cement is a different color concrete has sand mixed in

Cement and concrete are both building materials, but they have some key differences. Cement is a fine powder that is made by heating limestone, clay, and other materials in a kiln. It acts as a binder, holding other materials together. Concrete, on the other hand, is a mixture of cement, water, sand, and gravel or crushed stone. The cement and water form a paste that coats the surface of the aggregates (sand and stone), binding them together to form a solid mass. So, the main difference is that cement is the binding agent, while concrete is the final product made by combining cement with other materials.