The whole book is a compilation of question papers from different years of a science-based exam. Each section carries either a complete paper or a set of multiple-choice questions drawn from different editions of the test. What’s nice is that these papers don’t just cover one topic, but a mix of physics, chemistry, biology, and even some math-based reasoning, making it very close to the actual exam experience. By going through it, you can train yourself to deal with time pressure, understand the exam pattern, and also discover which areas you’re strong in and which areas you need to polish up. It feels almost like flipping through a history of the exam—watching how the style of questions evolves, how certain concepts repeat in different forms, and how the level of toughness shifts over the years. Overall, it’s a handy companion for anyone aiming to prepare seriously for junior-level science Olympiads or similar competitions.