What does "volume" measure?

Volume measures the amount of three-dimensional space that an object occupies. It is a quantitative expression that tells us how much 'space' there is inside a solid, liquid, or gas. The unit of volume can vary, commonly using liters, cubic centimeters, or cubic meters, and is essential in various applications, such as determining the capacity of containers or the amount of material needed for a construction project.

Mass refers to the amount of matter in an object and is not directly related to volume. Two-dimensional space pertains to flat surfaces and does not account for depth or height, which are essential characteristics of three-dimensional objects. Surface area, on the other hand, measures the total area of the outer surface of a three-dimensional shape and does not provide information about the space the shape occupies. Thus, the definition of volume aligns exclusively with the measurement of three-dimensional space.