Question

how would you know if something more dense than something else. Trying to help my 5th grader on homework.

Answer 1

To find the density of an object, find the ratio of its mass to its volume

Answer 2

You take mass ÷ volume to = density
m/v=d
And from then on it's simple if its larger its more dense, smaller less density.
And if the density is below 1.00 it can float in water.