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NSO Classes 1–12 Science Olympiad Foundation (SOF)

National Science Olympiad

Master Physics, Chemistry & Biology with India’s Premier Science Olympiad

The National Science Olympiad (NSO) is an annual school competition cultivating scientific reasoning, empirical analysis, and technological curiosity among students from Class 1 to 12.

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Format
MCQ Objective
Single Choice + OMR
Duration
60 Minutes
Strict Timed Test
Question Count
35 to 50 Qs
Classes 1–4 vs 5–12
Marking Scheme
1 to 3 Marks
Zero Negative Marks

Official Exam Pattern & Sections

Curriculum structure published by Science Olympiad Foundation (SOF)

35 MCQs (Classes 1–4) / 50 MCQs (Classes 5–12) · 60 Minutes. Sections: Logical Reasoning (10 Qs), Science (35 Qs), Achievers Section HOTS (5 Qs, 3 Marks each).

Section 1

Logical Reasoning

Patterns, Analogy, Coding-Decoding, Spatial Understanding & Series.

Section 2

Subject Domain Core

Direct syllabus concepts strictly aligned with NCERT, CBSE, and ICSE curriculums.

Section 3

Everyday Applications

Practical contextual problems testing real-world numerical & scientific application.

Section 4

Achievers Section (HOTS)

High-Order Thinking Skills questions carrying 2 to 3 marks each to break rank ties.

Syllabus Scope: Physics (Mechanics, Optics, Electricity), Chemistry (Matter, Reactions, Acids), Biology (Cell Biology, Systems, Genetics), and Logical Reasoning.

Historical Chapter Weightage Matrix

Based on analysis of past NSO question papers (2010–2024)

100% Total
Physics: Force, Motion & Energy 25% (12 Questions)
Chemistry: Matter & Reactions 25% (12 Questions)
Biology: Life Processes & Cell 25% (11 Questions)
Logical Reasoning 15% (10 Questions)
Achievers Section (HOTS) 10% (5 Questions)

Why the Achievers Section Decides Your Rank

In NSO, the Achievers Section (HOTS) carries 2 to 3 marks per question (compared to 1 mark for general questions). When multiple students score the same overall total, international ranks and medals of distinction are awarded based on higher marks achieved in this specific section.

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Standard Preparation Books

MTG Olympiad Prep-Guide
Official workbook with solved past papers.
NCERT Exemplar Problems
Essential for Level 2 and Achievers Section.
Conducting Body
Science Olympiad Foundation (SOF)

Independent educational foundation promoting scientific temperament and mathematical competition worldwide.