?Developed by Professionals and Experienced Teachers from top schools across the country, the book has been divided into five sections namely Science, Logical Reasoning, Achievers section, Subjective section, and Model Papers. The concepts have been explained through examples, illustrations, and diagrams. To enhance the problem solving skills of candidates, Multiple Choice Questions (MCQs) with detailed solutions have been provided at the end of each chapter. The Subjective section has been introduced for thorough practice on writing descriptive type questions. Two Mock Test Papers have been provided for practice purpose. A CD containing Study Chart for systematic preparation, Tips & Tricks to crack Science Olympiad, Pattern of exam, and links of Previous Years Papers is accompanied with this book. The book is recommended for various school level and competitive exams.