Science Class 9 Chapter 2 Is Matter Around Us Pure?
Pure Substance A pure substance consists of a single type of particles. In other words, a substance is a pure […]
CBSE English Medium Class 9, Class 9th English Medium Science Notes
Class 9th English Medium Science Notes
CBSE English Medium Class 9, Class 9th English Medium Science Notes
Science Class 9 Chapter 1 Matter in Our Surroundings
✔ Everything in this universe is made up of material which scientists have named “matter”. ✔ Anything which occupies space