The main aim of bringing out this series is to make science more attractive, interesting and understandable to the students. The headings, subheadings, and definitions of each topic of this book have been given in different colours. This will help the students to locate the various topic easily and learn the definitions conveniently.

“A picture can say a thousand words” keeping this is mind, a large number of coloured pictures and sketches of various scientific processes, procedures, manufacturing plants and everyday situations involving scientific principles have been given in this book. This will help the students to understand the various facts of science clearly. It will also tell them how science is applied in the real world in homes, transport and industry.