57.6 MB (258.0 KB compressed)
4488 x 4488 pixels
38.1 x 38.1 cm ⏐ 15.0 x 15.0 in (300dpi)
SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Equal volumes of different materials, illustration. From left to right are blocks of foam, wood and lead. Although they are the same size, the mass of the blocks increases markedly from left to right, as the materials have different densities. Density is calculated by dividing the mass of an object by its volume.
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