SCIENCE वाले बडे bhaiya hai to koi chinta nai

  Chapter 1    Chapter 2    Chapter 3 

 Chapter 9     paper -1     Solution of paper 1       paper-2       Solution of paper 2  Chapter 8     Paper -1     Solution of paper 1     Paper -2      Solution of paper 2   Chapter 7     Paper 1      Solution of paper 1     Paper 2      Solution of paper 2     Chapter 5     Paper 1     Solution of paper 1      Paper 2     Solution of paper 2     Chapter 4      Paper 1      Solution of paper  1     Pape r 2      Solution of paper 2    Chapter 10     Paper 1     Solution of paper 1     Paper 2      Solution of paper 2    Chapter 11     Paper 1      Paper 2 

CHEMICAL REACTION AND EQUATIONS  ACID ,BASE AND SALTS   METALS AND NON - METALS CARBON AND ITS COMPOUNDS PERIODIC CLASSIFICATION OF ELEMENTS LIFE PROCESS CONTROL AND COORDINATION REPRODUCTION IN HUMAN HEREDITY AND EVOLUTION  LIGHT REFLECTION AND REFRACTION HUMAN EYE AND COLOURFUL WORLD ELECTRICITY MAGNETIC EFFECT OF ELECTRIC CURRENT SOURCES OF ENERGY OUR ENVIRONMENT MANAGEMENT OF NATURAL RESOURCES  

 Std 9   1) Chapter-3     2) Chapter 4   3) Chapter -1   4) Chapter-2     5) Chapter 6