he amount of matter an object has for its size

Answer 1

is called its density. Density is often expressed in units of grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³). It can be calculated by dividing the mass of an object by its volume. For example, the density of water is 1 g/cm³ because one cubic centimeter of water weighs one gram. Objects with higher density are generally heavier for their size than objects with lower density. Density is an important property in materials science, engineering, and many other fields.