The SOF has made NSO Sample Papers 2025-26 available in the form of a PDF file for all classes on the official website at sofworld.org. Using the provided links, students can also download the latest and previous years' sample papers of NSO from this article. They should solve NSO Olympiad sample papers, so they can practice with different types of questions and prepare for the SOF NSO exam.
This Story also Contains
Students may learn about key elements of the SOF NSO exam 2025-26, including the exam pattern, question types, and significant topics from the NSO syllabus, by solving the NSO sample papers. These NSO sample papers may be used by students to prepare for level 1 and level 2 exams. NSO sample papers are discussed in detail below, along with download links.
Go through the table given below to understand the NSO exam and its important details for the academic year 2025-26.
| Parameter | Details |
|---|---|
| Exam Organizing Body | Science Olympiad Foundation (SOF) |
| Eligibility | Students from classes 1 – 12, enrolled in a school recognized by SOF |
| Exam Level | Intermediate |
| Application Process | Via the Respective School Authorities |
| Exam Dates | Level 1 Exam Date 1: 13th November 2025Level 1 Exam Date 2: 27th November 2025Level 1 Exam Date 3: 11th December 2025 |
| Exam Mode | Offline |
| Fee of Registration | ₹125 |
| Frequency of Conduct | Once a year |
| Objective | To identify & foster passion for Science |
| Languages | English |
| Duration | 1 hour |
Students can download National Science Olympiad question papers easily by following the given steps:
Students should solve the sample papers to understand the current marking scheme and exam pattern. Go through the table below to download NSO class-wise sample papers for 2025-26.
| Question Papers | Download Links |
|---|---|
NSO Class 1 Sample Paper 2025-26 | |
NSO Class 2 Sample Paper 2025-26 | |
NSO Class 3 Sample Paper 2025-26 | |
NSO Class 4 Sample Paper 2025-26 | |
NSO Class 5 Sample Paper 2025-26 | |
NSO Class 6 Sample Paper 2025-26 | |
NSO Class 7 Sample Paper 2025-26 | |
NSO Class 8 Sample Paper 2025-26 | |
NSO Class 9 Sample Paper 2025-26 | |
NSO Class 10 Sample Paper 2025-26 | |
NSO Class 11 Sample Paper 2025-26 | Click here |
NSO Class 12 Sample Paper 2025-26 |
Students are advised to practice with NSO's previous years' sample papers for understanding the important topics and the typology of questions. Solving previous years' sample papers can help students improve their time management. Students can download the NSO's previous years' sample papers for classes 1 to 12 using the links provided in the tables below.
Students can download the NSO previous years' sample papers 2024 for classes 1 to 12 from the table below:
| Class (1 to 12) | Download link |
|---|---|
NSO Class 1 Sample Paper 2024-25 | Click here |
NSO Class 2 Sample Paper 2024-25 | Click here |
NSO Class 3 Sample Paper 2024-25 | Click here |
NSO Class 4 Sample Paper 2024-25 | Click here |
NSO Class 5 Sample Paper 2024-25 | Click here |
NSO Class 6 Sample Paper 2024-25 | Click here |
NSO Class 7 Sample Paper 2024-25 | Click here |
NSO Class 8 Sample Paper 2024-25 | Click here |
NSO Class 9 Sample Paper 2024-25 | Click here |
NSO Class 10 Sample Paper 2024-25 | Click here |
NSO Class 11 Sample Paper 2024-25 | Click here |
NSO Class 12 Sample Paper 2024-25 | Click here |
Students can download the NSO previous years' sample papers 2023 for classes 1 to 12 from the table below:
| Class (1 to 12) | Download link |
|---|---|
NSO Class 1 Sample Paper 2023-24 | Click here |
NSO Class 2 Sample Paper 2023-24 | Click here |
NSO Class 3 Sample Paper 2023-24 | Click here |
NSO Class 4 Sample Paper 2023-24 | Click here |
NSO Class 5 Sample Paper 2023-24 | Click here |
NSO Class 6 Sample Paper 2023-24 | Click here |
NSO Class 7 Sample Paper 2023-24 | Click here |
NSO Class 8 Sample Paper 2023-24 | Click here |
NSO Class 9 Sample Paper 2023-24 | Click here |
NSO Class 10 Sample Paper 2023-24 | Click here |
NSO Class 11 Sample Paper 2023-24 | Click here |
NSO Class 12 Sample Paper 2023-24 | Click here |
Students can download the NSO previous years' sample papers 2022 for classes 1 to 12 from the table below:
Class (1 to 12) | Download Link |
|---|---|
NSO Class 1 Sample Paper 2022-23 | |
NSO Class 2 Sample Paper 2022-23 | |
NSO Class 3 Sample Paper 2022-23 | |
NSO Class 4 Sample Paper 2022-23 | |
NSO Class 5 Sample Paper 2022-23 | |
NSO Class 6 Sample Paper 2022-23 | |
NSO Class 7 Sample Paper 2022-23 | |
NSO Class 8 Sample Paper 2022-23 | |
NSO Class 9 Sample Paper 2022-23 | |
NSO Class 10 Sample Paper 2022-23 | |
NSO Class 11 Sample Paper 2022-23 | |
NSO Class 12 Sample Paper 2022-23 |
Students can download the NSO previous years' sample papers 2021 for classes 1 to 12 from the table below:
| Class (1 to 12) | Download Link |
|---|---|
NSO Class 1 Sample Paper 2021-22 | |
NSO Class 2 Sample Paper 2021-22 | |
NSO Class 3 Sample Paper 2021-22 | |
NSO Class 4 Sample Paper 2021-22 | |
NSO Class 5 Sample Paper 2021-22 | |
NSO Class 6 Sample Paper 2021-22 | |
NSO Class 7 Sample Paper 2021-22 | |
NSO Class 8 Sample Paper 2021-22 | |
NSO Class 9 Sample Paper 2021-22 | |
NSO Class 10 Sample Paper 2021-22 | |
NSO Class 11 Sample Paper 2021-22 | |
NSO Class 12 Sample Paper 2021-22 |
Frequently Asked Questions (FAQs)
The Science Olympiad Foundation conducts the NSO exam for the academic year 2025-26 for classes 1 to 12.
NSO sample papers provided by SOF contain similar types of questions asked during the examination. The purpose of these question papers is to help students prepare for real exams.
Students benefit from NSO sample papers since they enable them to become familiar with important features of an exam. In addition, solving NSO sample papers will improve students' speed. This will help them to score well on the NSO exam.
On Question asked by student community
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
As per latest syllabus. Physics formulas, equations, & laws of class 11 & 12th chapters
As per latest syllabus. Chemistry formulas, equations, & laws of class 11 & 12th chapters
As per latest 2024 syllabus. Study 40% syllabus and score upto 100% marks in JEE
As per latest syllabus. Maths formulas, equations, & theorems of class 11 & 12th chapters