Question

What is density?
Arrange the following in order of increasing density - air, exhaust from chimneys, honey, water, chalk, cotton and iron.

Answer 1

→Density=[mass/volume]
The amount per unit size of any substance is called density.

INCREASING DENSITY:
Air→Exhaust from chimneys→cotton→Water→Honey→Chalk→Iron.

Answer 2

"Density:

The correct order of density for the given substances is as follows.

"Air" < "Exhaust from chimney" < "cotton" < "Water" < "Honey" < "Chalk" < "Iron".

The mass per unit volume is called as density. The density of substance will be calculated by following formula.

$Density =\frac{\text {Mass}}{\text {Volume}}$

The density of air is lesser than impure air which is lesser than cotton which is lesser than water which in turn lesser than honey which is lower than chalk which is lesser than iron."