No. Density is a property of a given material, regardless of how much or how little you have. Density is mass divided by volume. These statements are not contradictory. The aluminum in a one-inch cube of aluminum has the same density as the aluminum in a 3-foot cube of aluminum. It's just that there is more of it in the larger cube. The mass divided by the volume will give you the same number if you calculate it for these two cubes. Different materials have different densities.