Mass/volume is called density.
density
The amount of matter is mass. Volume is the amount of space that matter takes up. The amount of matter in a given volume is density.
Density
compastion
Density
density
density
The amount of matter in an object is usually described with its mass or volume.
density is mass/volume
...will be the product of the material's volume and density.
The amount of matter in a given volume of space is its D-E-N-S-I-T-Y Its Density NOT Volume!
density
volume