The material in this book is divided into 37 chapters, each containing theory that can be taught during a school hour, based on the curriculum.

Each chapter includes:
- the theory of the school book in the form of answered questions,
- topics for answering in various forms (multiple choice, matching, true-false, development, etc.),
- review tests,
- all the questions from the Question Bank corresponding to the material of the specific chapter, grouped by Topic (Topic B and Topic D).
In the last section of the book, answers to the questions of the school book are provided, as well as answers to the questions from the Question Bank. It also includes data, suggestions, and clarifications for the indicative activities, i.e., the tasks and laboratory exercises suggested by the curriculum and for some of those included in the school book.