Introduction
The Science syllabus for CBSE Class 9 is designed to provide students with a comprehensive understanding of various scientific concepts and principles. It aims to promote scientific inquiry, critical thinking, and problem-solving skills among students. The syllabus covers a wide range of topics from Physics, Chemistry, and Biology, enabling students to develop a strong foundation in science.

Number of Chapters
The Science syllabus for CBSE Class 9 consists of a total of 15 chapters. These chapters are divided into three major sections: Physics, Chemistry, and Biology. Each section focuses on different aspects of the respective subject, allowing students to explore various scientific phenomena.

Physics
1. Matter in Our Surroundings
2. Is Matter Around Us Pure?
3. Motion
4. Force and Laws of Motion
5. Gravitation
6. Work and Energy
7. Sound

Chemistry
1. Atoms and Molecules
2. Structure of the Atom
3. The Fundamental Unit of Life
4. Tissues
5. Diversity in Living Organisms
6. Motion of System of Particles and Rigid Body
7. Gravitation

Biology
1. The Living World
2. Diversity in Living Organisms
3. Why Do We Fall Ill?
4. Natural Resources
5. Improvement in Food Resources

Conclusion
The Science syllabus for CBSE Class 9 consists of 15 chapters divided into three sections: Physics, Chemistry, and Biology. These chapters cover a wide range of topics, providing students with a strong foundation in science. By studying these chapters, students can develop a deep understanding of scientific concepts and principles, which will be beneficial for their future academic and professional pursuits.