What is meant by the statement "copper is denser than wood"
copper is denser than wood. The masses of the atoms and the spacing between them determine the density of materials. Density is considered as the 'lightness' or 'heaviness' of material of same size. It is the measure of the compactness of matter, of how much mass occupies a given space. Thus, copper is denser than wood (provided we consider the amounts of copper and wood to be the same)