The NCERT science book class 9 is the new ‘Exploration’ textbook, introduced for the 2026-27 session under NCF-SE 2023, replacing the earlier combined Class 9 Science book; this ncert class 9 science book pdf covers every chapter below.
What’s in the Class 9 Science NCERT Book (2026-27 Edition)
Exploration integrates physics, chemistry, biology and (for the first time at this level) earth science in one sequence: it opens with a chapter on how science itself works, moves through cell biology and tissues, motion and forces, mixtures and atomic structure, sound, and closes with reproduction, classification and Earth as an interconnected system.
Study Tip
Reproduction and classification have moved down from Class 10 into this book, so treat chapters 11-12 as core Class 9 material rather than a preview — they will not be re-taught next year the way they used to be.
Use the download button above to access this book on the official NCERT source.
Chapters in This Book
Chapter links on this page were last automatically re-checked against the official NCERT source on August 11, 2026.
All 14 rows below link directly to the official NCERT source (ncert.nic.in) — nothing is hosted on this site. Click “Read” to open a chapter, or “Download” to save it. You can also open the full book in our chapter-by-chapter reader.
How do I download the Class 9 Science NCERT book PDF?
Click any chapter link in the table above to open that chapter’s official PDF, or download the complete book in one file using the ZIP link, both sourced directly from ncert.nic.in.
Is this Class 9 Science PDF free to download?
Yes, NCERT makes all its textbooks freely available on its official website, and every link on this page goes directly to that source.
Is this the 2026-27 edition of the Class 9 Science book?
Yes, this page covers the 2026-27 edition of the NCERT Class 9 Science textbook.
How many chapters are in the Class 9 Science book?
This book has 13 content chapters plus the front matter section, covering physics, chemistry, and biology topics.
Is this book available in Hindi medium?
Yes, NCERT publishes a Hindi-medium edition of this Science textbook on its official textbooks portal alongside the English edition.
Can I read this book offline after downloading it?
Yes, once downloaded, the chapter PDFs and the ZIP file can be opened and studied offline anytime using any standard PDF reader.
Which chapters carry the most weight in exams?
CBSE does not publish official chapter-wise weightage for Class 9 (that applies mainly to Class 10 and 12 board exams), but concepts from Motion, Force and Laws of Motion, and The Fundamental Unit of Life tend to recur heavily in Class 10 as well, making them worth extra attention.
Should I also use the NCERT Exemplar for Science?
The NCERT Exemplar is a useful add-on once the textbook chapters are clear, offering higher-order and application-based questions that strengthen conceptual understanding.
Do numerical problems appear in Class 9 Science?
Yes, chapters like Motion, Force and Laws of Motion, Gravitation, and Work and Energy include numerical problems that are important to practice thoroughly.
How does Class 9 Science prepare students for Class 10 board exams?
Class 9 Science builds the conceptual base for Class 10’s board syllabus, so a solid understanding here directly reduces the learning load in the board year.
What is the best way to revise this book before exams?
Go chapter by chapter through the NCERT text, redo all in-text and end-of-chapter questions unaided, and revisit diagrams and definitions since these are frequently tested directly.
Where can I find the other Class 9 NCERT subject books?
This site has free PDF download pages for all Class 9 NCERT subjects, including Mathematics, English, Hindi, and Social Science — check the Class 9 catalog for the full list.