How is Density Measured?

 

Definition of Density: Density = the ratio of mass to volume. For example, take one liter of water from the Dead Sea and compare it to an equal volume of water (1 liter) from the ocean. Boil both samples of water until all of the water has boiled off, leaving the mineral salts behind. The weight, or mass, of the mineral salts remaining from the Dead Sea sample would be greater than the mineral salts remaining from the ocean sample. Thus, there is a higher ratio of mass (dissolved mineral salts) to volume (water) in water from the Dead Sea, so it has a higher density. Salinity of the Dead Sea