List three characteristics of particles of matter. Describe one example for example for each characteristic to illustrate it. Name the characteristics which are responsible for (a) spreading of smell of scent in a room and (b) water taking the shape of the vessel in which it is poured.

Explanation

For the three characteristics of matter and their examples, consult section 1.2.
(a) Spreading of smell of scent in a room is because of diffusion of the gases. Scent consists of a number of sweet smelling gases or vapours.
(b) Water is a liquid and liquids take up the shape of any container in which these are kept.