Dashboard · Exams · SOF NSO
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.
Updated 18 Aug 2026 ·Vacancy counts change every cycle — always confirm the exact number in the latest official notification before applying.
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Free SOF NSO preparation on Shishya
Take expert-curated mocks, practise previous year papers, and Ask Shishya when you're stuck — verified by students who cleared the same path. All free, no credit card. Sign in with Google to begin.
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Verbal ReasoningIf 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
10 questions across the syllabus to see where you stand.
2025
21 questions
Take paper →2024
20 questions
Take paper →2023
20 questions
Take paper →2022
20 questions
Take paper →2021
19 questions
Take paper →Take any mock in your preferred language — use the language picker inside the mock to switch (Hindi, Telugu, Tamil, Bengali, and 15 more).
SOF NSO — Science Drill
SUBJECT15 questions · 20 min
Start mock →SOF NSO — Logical Reasoning Drill
SUBJECT15 questions · 20 min
Start mock →SOF NSO — Achievers Section Drill
SUBJECT15 questions · 20 min
Start mock →SOF NSO — Full Length Practice
FULL50 questions · 60 min
Start mock →SOF NSO — Full Mock 1
FULL50 questions · 60 min
Start mock →SOF NSO — Full Mock 2
FULL50 questions · 60 min
Start mock →SOF NSO — Full Mock 3
FULL50 questions · 60 min
Start mock →SOF NSO — Full Mock 4
FULL50 questions · 60 min
Start mock →SOF NSO — Full Mock 5
FULL50 questions · 60 min
Start mock →SOF NSO — Full Mock 6
FULL50 questions · 60 min
Start mock →SOF NSO — Full Mock 7
FULL50 questions · 60 min
Start mock →SOF NSO — Full Mock 8
FULL50 questions · 60 min
Start mock →SOF NSO — Full Mock 9
FULL50 questions · 60 min
Start mock →SOF NSO — Full Mock 10
FULL50 questions · 60 min
Start mock →Full-length subject tests below — 25 questions each, real exam format, instant scoring. Want to drill a single topic? Every topic has its own 10-question test in the syllabus.
Logical Reasoning
120 QsScience
159 QsAchievers Section
41 QsTell 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.
Take a mock to see where you stand on the leaderboard.
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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.
National Top 500 — Elite
92–100% · Post-based exam (no numeric rank)
Science Olympiad Foundation has announced Level 1 exam dates for NSO 2026-27 as October 30, November 19, and December 3, 2026. Schools must choose one date and register students at least 30 days before the selected exam date.
SOF confirmed that NSO Level 2 exam dates will be announced by December 2026, tentatively scheduled for the 2nd or 3rd Sunday of February 2027 for students qualifying from Level 1.
SOF has dispatched Olympiad registration forms to schools for the 2026-27 academic year. Schools not receiving forms can contact info@sofworld.org for prospectus and registration materials.
Tap any topic for its study notes + a 10-question topic test
Verbal Reasoning
Word-based analogy, classification and word formation problems.
Non-Verbal Reasoning
Figure-based pattern, analogy, classification and series problems.
Series Completion
Number, alphabet and figural series — find the missing or next term.
Analogy
Word, number and figural analogy with a common relation.
Coding-Decoding
Letter-letter, letter-number and substitution coding patterns.
National Top 1-2%
85–92% · Post-based exam (no numeric rank)
National Top 5% Range
75–85% · Post-based exam (no numeric rank)
State/Zonal Level Recognition
60–75% · Post-based exam (no numeric rank)
Above Average Performance
40–60% · Post-based exam (no numeric rank)
Participation Level
0–40% · Post-based exam (no numeric rank)
AI-curated from historic cut-off patterns. Always verify with the latest official notification before making decisions.
The Science Olympiad Foundation released the NSO Level 2 results for 2025-26 in March 2026, completing the previous academic cycle and paving way for the new 2026-27 session.
🏅NSO 2025-26 Level 1 exam (Set A)
passedThu, 13 Nov, 2025
Completed - first of three Level 1 exam dates for 2025-26 cycle
NSO 2025-26 Level 1 result announced
passedMon, 12 Jan, 2026
Results released at results.sofworld.org
🏅NSO 2025-26 Level 2 exam (India except Maharashtra)
passedSun, 8 Feb, 2026
For Classes 3-12 qualifiers from Level 1
NSO 2025-26 Level 2 Result (past cycle)
passedSun, 15 Mar, 2026
Previous cycle Level 2 result released
NSO 2025-26 Level 2 result declared
passedWed, 18 Mar, 2026
Results available at results.sofworld.org
Registration window opens (expected)
passedSat, 1 Aug, 2026
Schools typically start receiving registration forms and begin enrolling students from August for October exams
Registration closes for Set A (expected)
35 days awayWed, 30 Sept, 2026
Registration must be submitted 30 days before chosen exam date
🏅NSO Level 1 Exam - Set A
65 days awayFri, 30 Oct, 2026
Schools may choose one of three dates; conducted at school premises
🏅NSO Level 1 Exam - Set B
85 days awayThu, 19 Nov, 2026
Alternative exam date for schools; different question paper than Set A
🏅NSO Level 1 Exam - Set C
99 days awayThu, 3 Dec, 2026
Third exam date option for schools
Matter in Our Surroundings
States of matter, change of state, evaporation, latent heat and diffusion.
Is Matter Around Us Pure
Mixtures, solutions, suspensions, colloids and methods of separation.
Atoms and Molecules
Laws of chemical combination, atomic and molecular masses, mole concept.
Structure of the Atom
Sub-atomic particles, Thomson, Rutherford, Bohr models, isotopes and isobars.
Motion
Distance, displacement, velocity, acceleration and equations of motion.
Force and Laws of Motion
Newton's three laws, inertia, momentum and conservation of momentum.
Gravitation
Universal law of gravitation, free fall, mass vs weight, thrust and pressure.
Work and Energy
Work, kinetic and potential energy, conservation of energy and power.
Sound
Production, propagation, characteristics, reflection of sound and echo.
The Fundamental Unit of Life
Cell structure, organelles, prokaryotic vs eukaryotic cells.
Tissues
Plant tissues (meristematic, permanent) and animal tissues (epithelial, connective, muscular, nervous).
Diversity in Living Organisms
Five-kingdom classification and hierarchy of categories.
Why Do We Fall Ill
Health, disease, infectious vs non-infectious diseases and immunization.
Natural Resources
Air, water, soil, biogeochemical cycles and ozone layer.
Improvement in Food Resources
Crop production, animal husbandry and sustainable agriculture.
Chemical Reactions and Equations (Class 10)
Types of reactions, balancing equations, oxidation and reduction.
Acids, Bases and Salts (Class 10)
pH scale, indicators, properties and important salts.
Metals and Non-metals (Class 10)
Physical and chemical properties, reactivity series, corrosion.
Life Processes (Class 10)
Nutrition, respiration, transportation and excretion in plants and animals.
Electricity (Class 10)
Ohm's law, resistance, series/parallel circuits and electric power.
Magnetic Effects of Current (Class 10)
Magnetic field, solenoid, electromagnetic induction and AC/DC generator.
Light — Reflection and Refraction (Class 10)
Mirrors, lenses, refractive index and lens formula.
Our Environment (Class 10)
Ecosystem, food chains, ozone depletion and waste management.
Higher Order Science Application
HOTS questions applying concepts from the Science section to novel scenarios.
Experimental and Lab Skills
Predicting outcomes of experiments and interpreting lab observations.
Data and Graph Analysis
Reading and inferring from tables, charts and scientific graphs.
Problem Solving
Multi-step numerical and conceptual problems blending two or more topics.
Real-World Applications
Contextual questions linking science concepts to everyday phenomena.