Ch:1 - Pg6 - Q.1) The mass per unit volume of a substance is called density.(density = mass/volume)

CBSE - class IX - NCERT - Ch-1 Matter in our surroundings Ch:1 - Pg6 - Q.1) 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 chimneys, honey, water, chalk, cotton and iron.