Arrange the following substances in increasing order of forces of attraction between particles - water, sugar, oxygen.
Give reason for the following observation. We can get the smell of perfume sitting several metres away.
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.
Comment upon the following:- rigidity, compressibility, fluidity, filling a gas container, shape, kinetic energy, and density.
- Science Textbook for Class 9