Exams · SOF NSO

Olympiad

SOF NSO

SOF NSO — Level 1 exam — Date 1: 30 Oct 2026 (official — sofworld.org). Official site: sofworld.org.

SOF National Science Olympiad

School-level science olympiad conducted by SOF. 35 questions for Class 1–4, 50 questions for Class 5–12 in Logical Reasoning, Science, and Achievers Section.

Free SOF NSO mock tests and previous year paper practice — start now.

Full-length mocks with instant scoring and solutions, PYQ-pattern papers, topic-wise tests and Ask Shishya when you're stuck. Your scores and a free day-by-day plan are saved to your account. All free, no credit card. Content is AI-drafted and checked against the official notification.

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🎓 Preparing for SOF NSO? Get a free day-by-day plan to exam day. Rebuilt every morning around what you actually did — miss a day, nothing is lost.Build my plan →

Updated 3 Oct 2026 ·Vacancy counts change every cycle — always confirm the exact number in the latest official notification before applying.

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Source: official exam authority notification · refreshed weekly. How this works →

✦ Try a SOF NSO question — free, no signup

If the letters in the word 'CREATIVE' are rearranged in alphabetical order, which letter will be in the 5th position from the left?

Tap an option to check your answer.

Start with a diagnostic

5 questions across the syllabus to see where you stand.

This becomes your exam: a Daily 5 email on mornings after you visit, and emails about your streak, live tests, exam date and result day, or after a week away. Each has an unsubscribe link.

🧩 Build your own mock — pick exact topics → · every mock readable in हिंदी + 17 languages inside the test

SOF NSO — Frequently asked questions

Is Shishya free for SOF NSO preparation?
Yes. Every SOF NSO mock test, PYQ-pattern paper and study tool on Shishya is completely free — no subscription and no credit card. Questions are written with AI to follow each exam's syllabus topics on Shishya, and re-checked whenever a student reports one.
How many SOF NSO practice questions does Shishya have?
Shishya has 289 SOF NSO practice questions, written with AI. The automated answer check (three independent AI solves and an examiner) has passed 285 of them; for the remaining 4, that check has not run yet. Any question a student reports is re-checked. They are available as adaptive mock tests with a worked solution for every question.
Are SOF NSO previous year question papers available?
Shishya has free SOF NSO previous year paper practice: PYQ-pattern papers covering 2021–2025 (5 years) — questions freshly worded in the pattern of each year's paper, not the paper itself; each year's page shows how many questions it holds against the real paper's count. Each is a timed practice set with full solutions.
What is the expected cutoff for SOF NSO?
Cutoffs change every cycle with paper difficulty and vacancies. Shishya maintains indicative score-to-rank bands and category-wise (General/EWS/OBC/SC/ST) expected cutoffs — not official figures — at https://shishya.in/exams/SOF_NSO/cutoff
Is there a full-length SOF NSO mock test in the real exam pattern?
Yes — Shishya has a free full-length SOF National Science Olympiad mock built to the exam's pattern, with sections in the paper's order, scored with solutions. It is the "Full-Length Mock (Real Pattern)" tile on this page.
Can I build a topic-wise SOF NSO mock test?
Yes — pick any topics from the SOF NSO syllabus, choose 10, 25 or 50 questions and the difficulty, and attempt it as a timed mock with solutions and weak-topic analysis, free, at https://shishya.in/exams/SOF_NSO/build-mock — questions can be read in Hindi and 17 other Indian languages inside the test.
How can I prepare for SOF NSO for free?
Shishya offers SOF NSO preparation 100% free: adaptive mock tests, previous year paper practice (PYQ-pattern papers modelled on each year's paper), the full syllabus with study notes (https://shishya.in/exams/SOF_NSO/syllabus), subject-wise memory tricks (https://shishya.in/exams/SOF_NSO/tricks), a free day-by-day coach plan and an AI tutor in 18 Indian languages.

Previous year papers

100 questions across all years

Official sample papers

Free sample papers Science Olympiad Foundation (SOF) publishes on its own site for the 2026-27 exam. They are the body's own practice papers, not previous years' papers. Each link opens the body's own file.

Previous year paper practice: each year is a set of PYQ-pattern questions — freshly worded in the pattern of that year's paper, not the paper itself. Every card shows how many it holds against the real paper's count.

Practise PYQ-pattern questions topic by topic, across all years →

Mock tests

Take any mock in your preferred language — use the language picker inside the mock to switch (Hindi, Telugu, Tamil, Bengali, and 15 more).

New to SOF NSO? Start small:a 25-question subject test first — 4 in 5 aspirants finish these; full mocks after your first win.Pick a subject test ↓

Practice by subject & topic

Full-length subject tests below — 25 questions each, real exam format, instant scoring.Want to drill a single topic? Open it from the syllabus — a topic that has practice questions has a short quiz on its page.

  • Logical Reasoning

    98 Qs
  • Science

    153 Qs
  • Achievers Section

    38 Qs

🎯 Build my own mock

Tell Shishya exactly what to test you on — topics, size, difficulty — and get a fresh mock in seconds. Leave the box blank and we'll target your weakest topics.

Questions
Difficulty

Your rank

vs everyone who has taken this exam

Take a mock to see where you stand on the leaderboard.

Students

2

Mocks taken

5

Average score

56%

Top score

100%

What can I get from SOF NSO?

Mock-score → expected rank → likely outcome. Use the mocks below to find your current band, then plan how many marks you need to climb.

AI-curated from historic cut-off patterns. Always verify with the latest official notification before making decisions.

News & timeline

See older updates →

Latest news

Important dates

  1. Registration opens (2026-27 cycle)

    passed

    The expected application start date has passed — check the official website

    Expected

    Schools can register students through their institution; individual registrations not accepted. Registrations must be submitted 30 days before chosen exam date.

  2. School registration deadline

    passed

    Mon, 31 Aug, 2026

    Schools must submit forms by this date or at least 30 days before chosen exam date

  3. Registration deadline for Date 1 exam

    passed

    Wed, 30 Sept, 2026

    Schools selecting October 30 exam date must submit registrations by this date (30 days before exam).

  4. Registration deadline for Date 2 exam

    9 days away

    Tue, 20 Oct, 2026

    Schools selecting November 19 exam date must submit registrations by this date.

  5. 🏅Level 1 exam — Date 1

    19 days away

    Fri, 30 Oct, 2026

    First of three exam date options; schools choose one date; conducted in schools during school hours. Now called ISO (International Science Olympiad). · no key published for this stage

  6. Registration deadline for Date 3 exam

    23 days away

    Tue, 3 Nov, 2026

    Schools selecting December 3 exam date must submit registrations by this date.

  7. 🏅Level 1 exam — Date 2

    39 days away

    Thu, 19 Nov, 2026

    Second of three exam date options; separate question paper for each date. · no key published for this stage

  8. 🏅Level 1 exam — Date 3

    53 days away

    Thu, 3 Dec, 2026

    Third and final exam date option for Level 1. · no key published for this stage

  9. Level 1 result (expected)

    96 days away

    Fri, 15 Jan, 2027

    Expected

    Results typically declared 4-6 weeks after the last Level 1 exam date. Students can check at results.sofworld.org using roll number.

  10. 🏅Level 2 exam (expected)

    126 days away

    Sun, 14 Feb, 2027

    Expected

    For Classes 3-12 qualifiers only; tentatively 2nd or 3rd Sunday of February 2027; exact date to be announced by December 2026. Classes 1-2 have single-level exam only. · no key published for this stage

  11. Level 2 result (expected)

    160 days away

    Sat, 20 Mar, 2027

    Expected

    Level 2 results typically released in March, about 4-6 weeks after the Level 2 exam.

Syllabus

Tap any topic for its study notes + a 10-question topic test

Logical Reasoning

Science