Question

How would you find the density of a gallon of milk?

Answer 1

What is density? It's the amount of mass per unit of volume. So for instance, what's more dense, a pillow or a rock? Well a pillow has a bunch of air in it, and you can press it down so that it's really just a lot of air and not a lot of mass.

So mass per volume. That's just division right? density = mass/volume. It looks like we need to know the mass and volume of the milk. What do we have and what do we need?