an instrument used to measure atmospheric pressure. A barometer also monitors variations in atmospheric pressure. As air becomes thinner, the density of air decreases, and so too does the pressure ...

g/cm³ (if mass is measured in g and volume in cm³). The more dense a substance is, the heavier it feels for its size. Steel has a density of 7.82 g/cm³ Water has a density of 1.00 g/cm³ Air ...

Density in particular ... Squeezing typical seawater (or air) causes the temperature to rise. A pressure of 100 atmospheres (or about 1000 dbar) is enough to increase measured seawater ...