NSO Exam Date:11 Dec' 25 - 11 Dec' 25
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.
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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)
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.
The Science Olympiad Foundation conducts the NSO exam for the academic year 2025-26 for classes 1 to 12.
On Question asked by student community
Hi Sneha
The Science Olympiad Foundation is conducting the Set A and Set B exams, which are taking place between 13 November to 27 November 2025. Recently, the NSO released the answer key on their official website. Set A, B and C exam answer key release separately, and the student accesses the answer keys to match the correct answer with their answer. If you want to NSO class 5 answer key, then you can click on the article SOF NSO Answer Keys 2025-26 from our official website careers360.
Best Wishes.
Hello,
You can get the SOF NSO all sets Answer Keys 2025-26 from the careers360 website. This website also provides previous years question papers, important dates, syllabus, exam patterns, marking schemes, question papers along with answer keys, exam paper anlysis and preparation tips also.
Follow the link: https://school.careers360.com/articles/nso-answer-key
That's a smart step for verifying your performance! You can definitely find the NSO Answer Key for Set B on the provided resource page. The Science Olympiad Foundation (SOF) releases the answer keys for all sets and classes (1 to 12). Visit the link, scroll to the Answer Key section, and select your specific class to download the Set B PDF: https://school.careers360.com/articles/nso-answer-key . Use it to accurately calculate your score
Hello,
You can get the SOF NSO SET-B Question Paper with Answer Key from the Careers360 website. This website also provides previous year question papers, syllabus, important dates, exam patterns, marking schemes, question paper along with answer keys, exam paper analysis, preparation tips and many more.
follow the LINK: https://school.careers360.com/articles/nso-answer-key
I hope this answer helps you!
Hello,
29 out of 40 score generally consider very good score if exams difficulty was moderate to high and it show strong conceptual understanding and accuracy although your ranking depends on overall performance of nation wide and your level of class
From this score you can get decent rank and percentile
I hope you find this helpful!!!
Thank you
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