This book is meant for the students of class 8th and above.
It contains 2000+ questions which are important for various exams like National Science Olympiad, NTSE, Govt competitions, teaching exams and all other exams where science questions are asked as a part of GK. The content of the book comprises of 500 questions each from Physics, Chemistry, Biology and Everyday Science. These questions are not specialized for the subject but form a part of general knowledge.
Along with Maths IQ challenge it forms a powerful tool to face competitive exams.