Relative Density: Evaluate

Relative density is a measure of how dense an object is compared to the density of water.

If an object floats, it means its density is less than the density of the fluid it is in.

If an object sinks, it means its density is greater than the density of the fluid it is in.

Density is the mass of an object divided by its volume.

You can determine if an object will float or sink by comparing its density to the density of water.

The density of water is approximately 1 gram per cubic centimeter (g/cm³).

An example of an object that floats in water is a foam block.

An example of an object that sinks in water is a rock.

Oil floats on water because its density is less than that of water.

Density is calculated by dividing mass by volume (Density = Mass/Volume).