You can calculate the mass of an object using its density and volume with the following formula:

Mass = Density x Volume

Here's a breakdown of the formula:

* Density: A measure of how much mass is contained in a given volume. It's typically expressed in units like grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³).

* Volume: The amount of space an object occupies. It's usually measured in cubic units like cubic centimeters (cm³) or cubic meters (m³).

* Mass: The amount of matter in an object. It's typically measured in units like grams (g) or kilograms (kg).

Example:

Let's say you have a block of wood with a density of 0.6 g/cm³ and a volume of 100 cm³. To find its mass:

* Mass = Density x Volume

* Mass = 0.6 g/cm³ x 100 cm³

* Mass = 60 g

Therefore, the block of wood has a mass of 60 grams.