* Mass: The amount of matter in an object. It's measured in units like grams (g) or kilograms (kg).
* Volume: The amount of space an object occupies. It's measured in units like cubic centimeters (cm³) or liters (L).
Density is the ratio of mass to volume. This means:
Density = Mass / Volume
* A substance with a high density means it has a lot of mass packed into a small space. Think of lead, which is dense.
* A substance with a low density means it has a smaller amount of mass spread out over a larger space. Think of air, which is less dense.
Here's how they relate:
* For a given substance, its density is constant. If you have a block of iron, the ratio of its mass to its volume will always be the same (iron's density).
* Knowing the density of a substance allows you to calculate either its mass or volume if you know the other. For example, if you know the volume of a piece of iron and the density of iron, you can calculate its mass.
In summary:
Mass, volume, and density are interconnected. Density acts as a bridge between the two, telling us how much matter is packed into a given space.
