The National Science Olympiad (NSO) syllabus for Class 9 was released by Science Olympiad Foundation (SOF) for the 2025-26 session. The NSO Class 9 exam, conducted by the Science Olympiad Foundation (SOF), comprises 50 multiple-choice questions to be completed within one hour, carrying a total of 60 marks. The NSO paper is divided into three sections: Section 1: Logical Reasoning includes 10 questions worth 10 marks in total; Section 2: Science consists of 35 questions valued at 35 marks; and Section 3: Achievers Section features 5 challenging high-order thinking questions, each carrying 3 marks, summing up to 15 marks.
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Any changes or reductions in the NSO syllabus will be reflected in the question papers. Students should prepare using the syllabus provided below.
Verbal and non-verbal reasoning questions to test analytical and problem-solving skills.
Motion, Force & Laws of Motion
Gravitation
Work & Energy
Sound
Matter in Our Surroundings
Is Matter Around Us Pure?
Atoms & Molecules (including Structure of the Atom)
Cell – The Fundamental Unit of Life
Tissues
Diversity in Living Organisms
“Why Do We Fall Ill” (Healthcare/Biology)
Natural Resources
Improvement in Food Resources
Challenging, multi-concept questions drawn from the same topics in Section 2, designed to test deeper understanding and analytical application.
In NSO 9th Level 1 exams, approximately 60% of questions are based on the current class (Class 9) syllabus, while 40% draw from the Class 8 syllabus.
In SOF NSO Level 2 exams and the Achievers Section, all questions are based solely on the current class syllabus.
Students can check the NSO 9th exam pattern and prepare for the different sections accordingly. They must prepare for the scoring part beforehand.
Section | No of questions | Marks/questions | Total marks |
|---|---|---|---|
Section – 1: Logical Reasoning | 10 | 1 | 10 |
Section – 2: Science | 35 | 1 | 35 |
Section – 3: Achievers Section | 5 | 3 | 15 |
Grand Total | 50 | 60 |
Section | No. of questions | Marks per Question | TOTAL Marks |
|---|---|---|---|
Science | 45 | 1 | 45 |
Achievers Section | 5 | 3 | 15 |
GRAND TOTAL | 50 | 60 |
Frequently Asked Questions (FAQs)
The NSO Class 9 syllabus is based on the curriculum of CBSE, ICSE, and various state boards. It is divided into three sections: logical reasoning, science, and the achievers section. Check the NSO 9th syllabus details above in the article.
The SOF NSO exam is an objective-type test with 50 multiple-choice questions (MCQs) to be completed in 60 minutes.
On Question asked by student community
The nso answer key for class 9 set b is a critical resource for students to calculate their expected scores and analyze their performance in the national science olympiad. the answer key provides the correct options for all fifty questions, which are divided into three sections: logical reasoning, science, and the achievers section. according to the marking scheme, each question in the achievers section carries three marks, while questions in the other sections carry one mark each, with no negative marking for incorrect answers. by cross-checking their responses with the official set b key, students can assess their chances of qualifying for the level two examination. you can find the detailed question-wise answer key and download the pdf for class 9 set b by visiting the following link: https://school.careers360.com/articles/nso-answer-key
Hello,
The National Science Olympiad is conducted by the Science Olympiad Foundation for the students from classes 9-12.
The aim of the examination is inculcate a passion for science in the students. The duration of examination is 1 hour.
Check out the official website of Careers360 for the answer keys of all sets. Link below.
https://school.careers360.com/articles/nso-answer-key
Thank you.
Hello,
Here is your SOF NSO Answer Key 2025-26. Kindly open open the link and check it out.
https://school.careers360.com/articles/nso-answer-key
I hope it will help you. For any further query please let me know.
Thank you.
Hello,
Here is your NSO set A class 7th answer key 2025 26. I am providing you the link kindly open and check it out.
https://school.careers360.com/articles/nso-answer-key
I hope it will help you . For any further query please let me know.
Thank you.
Hello,
Here is the link for your 9th standard NSO Science set C solved Question paper for 2025. Kindly check the following link.
https://www.careers360.com/question-nso-9th-2025-26-set-c-answer-key
I hope this helps you.
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