The mass per unit volume of a substance is called density.
Density = mass/volume
Arrange the following in order of increasing density – air, exhaust from chimney, honey, water, chalk, cotton, and iron.
We can solve this question by keeping this concept in mind that density of solid is more compare to liquid and density of liquid is more compare to gas.
Gas < Liquid < Solid
The given substances in the increasing order of their densities can be represented as:
Air < Exhaust from chimney < Cotton < Water < Honey < Chalk < Iron