Last verified: 30 September 2026, 7:15 AM IST. Exam pattern facts below follow the 2026 information bulletin (expected to repeat for 2027 — reconfirm when the new bulletin releases). The chapter priority order is teacher guidance, not an official mark distribution: NTA does not publish chapter-wise weightage.
Class 9 Science in AISSEE is worth 50 marks — 25 questions, 2 marks each, inside a 180-minute, 400-mark paper. CONFIRMED (2026 pattern): the section is set from the Class 8 NCERT science syllabus, the whole Class 9 paper is in English only, and there is no negative marking.
That last fact changes everything. Science is not a section to “play safe” in — it is a section to prepare properly and then attempt fully. The students who score here do one thing differently: they stop memorising and start understanding.
The Class 9 Science section draws on the complete Class 8 NCERT science book — physics, chemistry and biology together. Roughly, the book splits like this:
| Theme | Class 8 NCERT chapters |
|---|---|
| Physics | Force and Pressure; Friction; Sound; Chemical Effects of Electric Current; Light; Stars and the Solar System; Some Natural Phenomena |
| Chemistry | Synthetic Fibres and Plastics; Materials: Metals and Non-Metals; Coal and Petroleum; Combustion and Flame |
| Biology | Crop Production and Management; Microorganisms: Friend and Foe; Conservation of Plants and Animals; Cell Structure and Functions; Reproduction in Animals; Reaching the Age of Adolescence; Pollution of Air and Water |
Eighteen chapters sounds like a lot. It is not, once you stop treating all chapters equally. Here is a priority order that reflects how application-based questions — not just definitions — actually appear in AISSEE.
These chapters are the foundation of the most application-based questions: numericals, “why does this happen” reasoning, and diagram-based MCQs.
| Week | Focus | Target |
|---|---|---|
| 1 | Tier 1 physics cluster: force, friction, sound, electric current | One-page concept notes per chapter + chapter-end questions |
| 2 | Tier 1 biology + Tier 2 fuels: cell, microorganisms, coal/petroleum, combustion | Redraw all labelled diagrams once from memory |
| 3 | Tier 2 remainder: reproduction, light, solar system, environment cluster | Timed sets: 25 questions in 30 minutes |
| 4 | Tier 3 chapters + full-section mock tests | Error log review; re-attempt every wrong question |
Work the plan in 45-minute blocks — one chapter concept, then its questions. Science rewards this rhythm more than marathon reading sessions.
Science in AISSEE is not about genius — it is about coverage done properly. Fifty marks sit there for any student willing to read one book carefully and draw its diagrams. Pair this plan with your daily timetable (the method works for Class 9 too), remember there is no negative marking so attempt every question, and confirm your age eligibility for Class 9 before the notification drops.
What is the syllabus for AISSEE Class 9 Science?
Class 9 Science in AISSEE follows the Class 8 NCERT science syllabus — physics, chemistry and biology topics taught in Class 8. The section carries 50 marks with 25 multiple-choice questions, in English, with no negative marking.
How many marks does Science carry in AISSEE Class 9?
Science carries 50 marks out of 400 in the Class 9 paper: 25 questions of 2 marks each. The paper runs 180 minutes for 150 questions in total.
Is AISSEE Class 9 Science only in English?
Yes. Unlike the Class 6 paper, which is offered in 13 languages, the entire Class 9 paper including Science is conducted in English only.
How should I revise Science in the last month before AISSEE?
Work through your NCERT chapter-end questions, re-draw every labelled diagram once, and solve previous AISSEE Science sections under timed conditions. Diagrams and definitions are the most repeated question types.
Which chapters need the most attention for AISSEE Class 9 Science?
Start with the physics cluster — force, friction, sound and electric current — plus cell biology and micro-organisms. These foundations feed the most application-based questions, though the 2027 chapter-wise break-up will only be known after the exam.
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