Some of the distinctive features of this book include: Simple language is used throughout the book to explain scientific concepts. Chapter overview is given at the beginning of each chapter as learning outcomes. Vivid visuals in the form of colourful pictures, hand-drawn illustrations, well-labelled diagrams and flowcharts are provided for easy comprehension. Quick revision is possible at the end of each chapter through key terms and mind maps which have been given in the form of flow charts and arrow diagrams. Tabular representation of information in a structured format for easy retention. Engaging content is provided inboxes covering fascinating/ interesting facts and about the scientist. Diverse exercises like multiple-choice questions, fill in the blanks, true/false, match the following, short-answer, long-answer questions and Assertion and Reasoning are given to promote self-evaluation. Extended learning in the form of Higher Order Thinking Skills (HOTS), research-based questions and projects at the end of each chapter is given to challenge the application of knowledge. Relevant Case Studies are added to connect the concept to our everyday lives. Please note thar, we have followed British English in the entire book. For example: ‘Ionisation’ and ‘Sulphur’. In some books, you may find the same words written as ‘Ionization’ and ‘Sulfur’, which are also correct. We believe that this book will prove valuable for both students and teachers, fostering clarity of concepts and confidence in scientific learning.