If you were given equal volumes of Styrofoam and lead, how would their masses compare? How would their densities therefore compare?

Answer 1

The mass of lead would be significantly greater than the mass of Styrofoam because lead is much denser than Styrofoam. Lead has a density of 11,340 kg/m^3, while Styrofoam has a density of only about 75 kg/m^3. Therefore, the mass of lead would be much greater than the mass of Styrofoam for equal volumes of the two materials.