https://www.khanacademy.org/science/ms-chemistry/xc370bc422b7f75fc:physical-properties-of-matter/xc370bc422b7f75fc:density/v/density-conceptual 2025-02-13T17:59:34.347326855Z Density (conceptual) Density reveals how much mass is packed into a given volume. Different substances have different densities. Water’s density is 1.0 g/cm³, meaning any material with a density higher than this will sink in water, while lower densities float. Since each substance has a consistent density, this property helps identify materials and explain why some objects are “light” or “heavy” for their size. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/8ae75a73-6da6-42a1-905c-ec2f08726afe_1280_720_base.png Density (conceptual) Density reveals how much mass is packed into a given volume. Different substances have different densities. Water’s density is 1.0 g/cm³, meaning any material with a density higher than this will sink in water, while lower densities float. Since each substance has a consistent density, this property helps identify materials and explain why some objects are “light” or “heavy” for their size. https://cdn.kastatic.org/ka-youtube-converted/d7VPJ4DYwQQ.mp4/d7VPJ4DYwQQ.mp4 442 Density of matter https://www.khanacademy.org/science/ms-chemistry/xc370bc422b7f75fc:physical-properties-of-matter/xc370bc422b7f75fc:density/a/density 2025-08-07T20:06:55.282146473Z Density Learn about density as the relationship between mass and volume and how to calculate and compare the densities of different materials. Explore how density explains why some objects float while others sink and how density varies with temperature. article https://www.khanacademy.org/science/ms-chemistry/xc370bc422b7f75fc:physical-properties-of-matter/xc370bc422b7f75fc:density/e/understand-density 2026-03-11T01:40:33.014543209Z Understand: density Check your understanding of density in this set of free, standards-aligned practice questions. Allen Ruch exercise