https://www.khanacademy.org/science/grade-6-science-tx/x6eddf2e1c524bf5a:properties-of-matter/x6eddf2e1c524bf5a:density/v/density 2026-06-30T17:20:49.845080165Z Density Density is a measure of how much mass is packed into a given volume. This is determined by the mass and number of particles occupying a given space. The relative density of a substance may be used to predict whether it will float on another substance. For instance, anything with a greater density than water sinks in water, but anything with a lower density than water floats on water. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Density Density is a measure of how much mass is packed into a given volume. This is determined by the mass and number of particles occupying a given space. The relative density of a substance may be used to predict whether it will float on another substance. For instance, anything with a greater density than water sinks in water, but anything with a lower density than water floats on water. https://cdn.kastatic.org/ka-youtube-converted/w1P3q2GiTx4.mp4/w1P3q2GiTx4.mp4 278 Density https://www.khanacademy.org/science/grade-6-science-tx/x6eddf2e1c524bf5a:properties-of-matter/x6eddf2e1c524bf5a:density/e/apply-density-TEKS6 2026-06-30T17:20:49.845080165Z Apply: Density Apply your understanding of relative density in this set of free, standards-aligned practice questions. Allen Ruch exercise