Density is defined as what measurement?

Density is defined as mass per unit of volume, which indicates how much mass is contained in a given volume of a substance. This fundamental concept is critical in understanding material properties, as it helps determine how substances interact in different environmental conditions, such as floating or sinking in liquids.

In practical applications, knowing the density of various materials can also aid in identifying substances and assessing their behavior in different processes, such as sedimentation in geology or the buoyancy of objects in fluids. The measurement of density provides insights into the composition and structure of materials, making it an essential parameter in geology and other sciences.