SOF NSO Class 10 Syllabus 2025-26 & Exam Pattern PDF, Topics, Marking Scheme
The Science Olympiad Foundation (SOF) released the NSO 10th syllabus for all sections. Students appearing for the NSO exam should be well-prepared with the updated NSO Class 10 syllabus 2025-26. The SOF NSO is conducted at two levels. The Level 1 NSO exam tests students on their reasoning ability, science, and higher-order thinking skills. For Class 10, the NSO Level 1 paper comprises 50 questions to be solved in 60 minutes. Selected students from NSO Level 1 will qualify for the NSO Level 2 exam, which is based entirely on the Class 10 syllabus. Go through the following sections to check the SOF NSO Class 10 syllabus and exam pattern 2025-26.
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- SOF NSO Class 10 Syllabus 2025-26 - Highlights
- SOF NSO Class 10 Syllabus 2025-26
- SOF NSO Exam Pattern 2025-26
SOF NSO Class 10 Syllabus 2025-26 - Highlights
Students who are going to appear in the National Science Olympiad can go through the table below to get major highlights of the NSO Class 10th syllabus and other details:
Particulars | Details |
|---|---|
Exam duration | 60 minutes |
Total questions | 50 |
Total marks | 60 |
Exam levels | Level 1 and Level 2 |
NSO Level 1 syllabus distribution | 60% from the Class 10 syllabus, 40% from the Class 9 syllabus |
NSO Level 2 syllabus distribution | 100% from the Class 10 syllabus |
Sections in level 1 | Verbal & Non-Verbal Reasoning, Science (Class 9 & 10 topics), Mathematics/Quantitative Aptitude, Achievers Section |
Sections in level 2 | Science & Achievers Section |
Question type | Objective (Multiple Choice Questions) |
Official website | sofworld.org |
SOF NSO Class 10 Syllabus 2025-26
The NSO exam for Class 10 is divided into four sections. The section-wise syllabus is given below:
Section 1: Verbal and Non-Verbal Reasoning
Verbal Reasoning
Non-Verbal Reasoning
Series Completion
Analogy
Coding-Decoding
Blood Relations
Direction Sense Test
Ranking and Ordering
Puzzle Test
Venn Diagrams
Section 2: Science (Class 9 & 10 Topics)
The main science concepts tested in NSO for Class 10 are as per the Class 10 NCERT syllabus, along with important fundamentals from Class 9. Topics include:
Real Numbers
Polynomials
Pair of Linear Equations in Two Variables
Quadratic Equations
Arithmetic Progressions
Triangles
Coordinate Geometry
Introduction to Trigonometry
Applications of Trigonometry
Circles
Areas Related to Circles
Surface Areas and Volumes
Statistics
Probability
Section 3: Mathematics/Quantitative Aptitude
This section assesses the application of mathematical reasoning and problem-solving skills. Topics include:
Word Problems
Data Interpretation
Profit & Loss
Speed, Time & Distance
Time & Work
Ratio & Proportion
Percentage
Simple & Compound Interest
Miscellaneous Quantitative Problems
Section 4: Achievers Section (HOTS)
Higher-Order Thinking Questions
Based entirely on Section 2 topics (Class 10 syllabus)
Conceptual and application-driven problems
SOF NSO Exam Pattern 2025-26
The NSO 2025-26 exam will be conducted at two levels. The NSO Level 1 and Level 2 exam pattern is given below for students’ reference:
NSO Exam Pattern 2025-26 for Level 1
Section | No. of Questions | Marks/Question | Total Marks |
|---|---|---|---|
Verbal & Non-Verbal Reasoning | 15 | 1 | 15 |
Science (Class 9 & 10 topics) | 20 | 1 | 20 |
Mathematics / Quantitative Aptitude | 10 | 1 | 10 |
Achievers Section | 5 | 3 | 15 |
Grand Total | 50 | 60 |
NSO Exam Pattern 2025-26 for Level 2
Section | No. of Questions | Marks/Question | Total Marks |
|---|---|---|---|
Science | 45 | 1 | 45 |
Achievers Section | 5 | 3 | 15 |
Grand Total | 50 | 60 |
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Questions related to NSO
On Question asked by student community
Have a question related to NSO ?
You can check your NSO results online through the official Science Olympiad foundation (SOF), the level 1 results for the 2025-26 exams are expected to be announced in January 2026.
Hello,
For NSO level 2 students qualify via top perfomance in Level 1. I have attached the link for NSO results 2025 - 2026 in which you can get the results by entering your school code and roll number. Kindly check the below link and get your results.
https://school.careers360.com/articles/nso-result
I
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
Hello,
The link to the answer key is attached herewith. You can find the answer key on the website of Careers360. It will help you analyse your in-depth performance.
https://school.careers360.com/articles/nso-answer-key
Thank you.
Hello
You can visit the link I am attaching below, so that you can get access to the answer key for classes 1 to 12. The SOF(Science Olympiad Foundation) released the SOF NSO answer key for set A on December 16, 2025. You can also visit the official site of
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