Density (Units Conversion) and Floatation

Density is the mass per unit volume.

Common units for density are g/cm3 or kg/m3. SI unit is kg/m3.

Density of a pure substance is fixed, regardless of it’s size!

Floating and Sinking

A denser (heavier) substance will sink in liquid which is less denser (lighter).

A less dense (lighter) substance will float in a liquid which is denser.

If substance has the same density as the liquid, it will be suspended in the liquid.