# What science tools do we need to find the density of the object? What do each of them measure?

Nov 29, 2016

$\text{Density}$, $\rho$, is defined as mass per unit volume.....
And thus $\rho = \text{Mass"/"Volume}$. And thus $\rho$ has units of $g \cdot m {L}^{-} 1$ or $g \cdot c {m}^{-} 3$ (these are the typical units that chemists employ).
Now $\text{mass}$ is easy to measure on a set of scales. Volume is not so accessible with irregularly shaped objects. Of course, we could measure the volume by water displacement, but again, you have to mop up all the water on the floor afterwards.