CBSE Class 9 Science Notes – Chapter 3 : Atoms And Molecules
Laws Of Chemical Combination Antoine L. Lavoisier give two important laws of chemical combination. Law of Conservation of Mass: It states that mass can neither be created nor destroyed in a […]
CBSE Class 9 Science Notes – Chapter 2 : Is Matter Around Us Pure?
Substance Anything that cannot be broken into further particles by applying any physical processes is called a Substance. Matter can be classified into two types of substances – Pure substances […]
CBSE Class 9 Science Notes – Chapter 1 : Matter In Our Surroundings
Matter Anything that occupies space and has mass is called Matter. Physical Nature Of Matter Characteristics Of Particles Of Matter States Of Matter States Of Matter Solid Liquid Gas Definite […]
