Methods for calculating density of solids and liquids

[lylos]

Homework Statement

Give two examples of how you calculate the density of a solid, and two examples of how you calculate the density of a liquid.

Homework Equations

rho=m/v

The Attempt at a Solution

Now, the only way I know to find the density is to find volume, then mass and using rho=m/v. And for the liquid, doing the same thing... So I understand one method of each, but the other method eludes me.

 

[mgb_phys]

Not a very well written question.
I suppose for the solid you could either measure the sides and calculate the volume for a regular shape or sugmerge it in water for an irregular one.
Density of a liquid you could weigh a volume or use a Hydrometer.