key term - Density

Definition

Density refers to how much mass is packed into a given volume. It is the measure of how compact or crowded the particles in a substance are.

Related terms

Buoyancy:

The upward force exerted on an object submerged in a fluid, which depends on the density of both the object and the fluid.

Specific Gravity: The ratio of the density of a substance to the density of water at a specific temperature.

Mass: The amount of matter an object contains, measured in kilograms (kg).