Official NSO — National Science Olympiad dates aren't confirmed yet — we'll add the timeline the moment they're announced. Want results in your inbox? Get notified →

Academic

NSO — National Science Olympiad

SOF NSO practice — physics, chemistry, biology & reasoning

60 min20 questions— pass markIndia
Exam blueprint

What this exam covers

6 topics · 20 questions in the bank
Topic weights below mirror the real exam blueprint. To practise any single topic, use the Your study path panel on the right.
01Physics
20%4 questions
02Chemistry
20%4 questions
03Biology
20%4 questions
04Logical Reasoning
20%4 questions
05Everyday Science
10%2 questions
06Achievers Section
10%2 questions
How to prepare

How to prepare for NSO — National Science Olympiad

01
Plan your study time
Budget roughly 3–4 months with weekly mock tests for NSO — National Science Olympiad. Block fixed daily sessions rather than occasional long ones — spaced, consistent practice retains far better than cramming.
02
Start with the official material
Work from the official syllabus or study guide first so you know exactly what is in scope and how each area is weighted. The "Official source" block below links to the exam authority.
03
Build a practice cadence
Drill your weakest topics two to three times a week using focused practice, then sit one full, timed mock each week. Review every wrong answer immediately and write down the rule or concept you missed.
04
Watch the common pitfalls
Studying passively by re-reading instead of solving previous-year papers, and neglecting presentation/answer-structure that the marking scheme rewards.
05
The final 7 days
Stop learning new material and switch to consolidation: full timed mocks, a one-page sheet of high-frequency facts you keep slipping on, and a calm sleep schedule. Aim to be comfortably above the pass mark on mocks before test day.
06
Exam-day logistics
Reach the exam hall well before reporting time with your admit card and a transparent pouch of permitted stationery. Read the full paper in the reading time, attempt the questions you are surest of first, and keep a strict per-section time budget.
Official source
SOF
The Science Olympiad Foundation conducts the IMO, NSO, IEO and NCO olympiads.
AceMark is an independent practice tool, not affiliated with the exam authority. Always confirm the current syllabus, fees and dates on the official site.
Related AcademicTamil Nadu HSC AccountancyINMO — Indian National Mathematical OlympiadKVPY SA Stream (Class 11)KVPY SX Stream (Class 12)Browse all exams →

Frequently asked questions

Is the NSO — National Science Olympiad practice test free?

Yes. The NSO — National Science Olympiad practice test on AceMark is completely free — no paywall, no credit card, no premium tier. Sign in (free, takes 10 seconds) if you'd like to track your progress, save attempts, and unlock the AI study coach. Otherwise, browse and explore questions without an account.

How many questions are in the NSO — National Science Olympiad quiz?

Each NSO — National Science Olympiad attempt draws 20 questions and runs for about 60 minutes under realistic timed conditions.

Can I retake the NSO — National Science Olympiad test, and are the questions randomised?

Yes. Every attempt pulls a fresh, randomised set of questions, so you can't memorise your way through — you retake it until you genuinely know the material.

What score do I need to pass the NSO — National Science Olympiad?

The pass mark used in this simulation is —. AceMark scores every attempt instantly and shows which topics to review.