CBSE Class 10 Science Syllabus 2026–27 for Board Exam 2027: PDF Download
Download the CBSE Class 10 Science Syllabus 2026–27 PDF for the Board Exam 2027. Check the latest chapter-wise syllabus, unit-wise weightage, exam pattern, and direct PDF download link for effective preparation.
The Central Board of Secondary Education (CBSE) has released the Class 10 Science syllabus for the academic session 2026–27. The syllabus will be applicable for students appearing in the CBSE Class 10 Board Examination in 2027. The theory paper carries 80 marks, while 20 marks are allotted for internal assessment.
Unit-wise Weightage
| Unit | Topic | Marks |
|---|---|---|
| I | Chemical Substances – Nature and Behaviour | 25 |
| II | World of Living | 25 |
| III | Natural Phenomena | 12 |
| IV | Effects of Current | 13 |
| V | Natural Resources | 5 |
| Total Theory | 80 | |
| Internal Assessment | 20 |
Major Topics Covered
Chemistry
- Chemical Reactions and Equations
- Acids, Bases and Salts
- Metals and Non-metals
- Carbon and Its Compounds
- Periodic Classification of Elements
Biology
- Life Processes
- Control and Coordination
- How Do Organisms Reproduce?
- Heredity and Evolution
Physics
- Light: Reflection and Refraction
- Human Eye and the Colourful World
- Electricity
- Magnetic Effects of Electric Current
Environmental Science
- Our Environment
- Sustainable Management of Natural Resources
Download the PDF
For the complete chapter-wise syllabus and practical details, you can download the PDF from:
- CBSE Class 10 Science Syllabus 2026–27 PDF (Oswal)
- CBSE Class 10 Science Syllabus 2026–27 Overview and PDF
Exam Pattern Highlights
- Annual board examination of 3 hours.
- Greater emphasis on competency-based and application-oriented questions.
- Case-study, assertion-reason, and diagram-based questions continue to be important components of the paper.
Students are advised to prepare primarily from the latest NCERT textbook, as CBSE questions are closely aligned with NCERT content.