Density and Relative Density

The video tutorial explains how lava lamps work by introducing the concept of density, which is the ratio of mass to volume. It discusses the unique behavior of water's density, known as anomalous expansion, and how it affects the floating of ice. The tutorial further explains relative density, a comparison of a substance's density to water's density, and how it is calculated. Archimedes' principle is introduced as a method to determine the density of solids and liquids by measuring the loss of weight when immersed in water. The video concludes with a summary of the key points discussed.

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