This book is part of a series of three textbooks written to provide complete coverage of the NCERT syllabus for middle classes prescribed by CBSE. The questions and exercises in the books are given as per new examination pattern CCE. The three books in this series are : Awareness Science for VI to VIII classes. The main aim of bringing out this series of 'Awareness Science' books in multicolor is to make science more attractive, interesting and understandable to the students. The headings, sub-headings, and definitions of each topics of this book have been given in different colours. This will help the students to locate the various topics easily and learn the definitions conveniently.