Class-9-Science

Matter in our Surroundings Theory Session-1

This is an introductory session for the chapter matter in our surroundings. In this session there is brief discussion about the characteristics of matter and its particles.

Matter in our Surroundings Theory Session-2

In this session there is brief discussion about the characteristics of particles of matter, diffusion and types of forces present between the particles.

Matter in our Surroundings Theory Session-3

In this session there is brief discussion about the general properties of solid, liquid and gaseous state.