CBSE Class 8 Science Syllabus 2025-26
Official chapter-wise syllabus for CBSE Class 8 Science — unit-wise marks distribution, list of deleted/reduced topics, and the 2025-26 exam paper pattern. Use this page alongside the Class 8 Science preparation guide for full exam readiness.
2025-26
Academic Year
80
Theory Marks
20
Practical Marks
15
Total Chapters
Unit-Wise Marks Distribution
80 marks (theory)Matter
Synthetic Fibres and Plastics · Materials: Metals and Non-Metals · Coal and Petroleum · Combustion and Flame
25% of theory marks
Living World
Crop Production and Management · Microorganisms: Friend and Foe · Conservation of Plants and Animals · Cell — Structure and Functions · Reproduction in Animals
31% of theory marks
Force and Pressure
Force and Pressure · Friction · Sound · Light · Chemical Effects of Electric Current · Electroplating · Stars and Solar System
38% of theory marks
Environment
Pollution of Air and Water · Some Natural Phenomena
6% of theory marks
Chapter-Wise Syllabus
15 chapters| # | Chapter | Marks |
|---|---|---|
| 1 | Crop Production and Management | 7 |
| 2 | Microorganisms: Friend and Foe | 7 |
| 3 | Synthetic Fibres and Plastics | 5 |
| 4 | Materials: Metals and Non-metals | 7 |
| 5 | Coal and Petroleum | 5 |
| 6 | Combustion and Flame | 6 |
| 7 | Conservation of Plants and Animals | 6 |
| 8 | Cell — Structure and Functions | 8 |
| 9 | Reproduction in Animals | 7 |
| 10 | Reaching the Age of Adolescence | 6 |
| 11 | Force and Pressure | 6 |
| 12 | Friction | 6 |
| 13 | Sound | 6 |
| 14 | Chemical Effects of Electric Current | 6 |
| 15 | Light | 7 |
Exam Paper Pattern 2025-26
80 marks total| Section | Marks/Q | Count | Total | |
|---|---|---|---|---|
| Section A | 1 | 20 | 20 | |
| Section B | 2 | 10 | 20 | |
| Section C | 4 | 5 | 20 | |
| Section D | 5 | 4 | 20 | |
| Total Theory Marks | 80 | |||
Practical / Internal Assessment Marks — assessed throughout the year by your school (projects, lab work, notebooks).
How to Use This Syllabus
Prioritise by marks
Use the unit-wise distribution above. Focus first on units with 20+ marks — they give the best return on study time.
Skip deleted topics
CBSE will not ask deleted topics in the board exam. Don't waste time on them — use that time for NCERT exercises instead.
Know the paper pattern
Section E (Case Study) has new-format questions many students ignore. Practise these separately — they're easy marks.
You know the syllabus. Now practise it.
ClearSteps gives you chapter-wise mock tests aligned to the exact CBSE Class 8 Science syllabus, with AI evaluation against the official marking scheme.