What is NSO?
National Science Olympiad (NSO) is a yearly competitive exam conducted for school students. Organized by Science Olympiad Foundation (SOF), this exam aims at cultivating scientific reasoning and logical ability among the students through a rigorous test. The Foundation primarily envisions the scientific curiosity and vigour in young students through competitive exams. Read on to find out more about NSO.
Can I appear for NSO?
 Age: Students of classes 1 to 12th are eligible to appear for the 1st level Olympiads. Students who qualify for the 2^{nd} level exam include.
(a) Top 5% of students’ class wise, who appear for the 1st level exam,
(b) State wise top 25 rank holders class wise, and
(c) Class toppers from each participating school where at least 10 students from a class appear in the exam & scores 50% qualifying marks. Students from classes 1 and 2 are not required to appear for the 2^{nd} level exam and are ranked based on their performance in the first level exam.

 Year of Attempt: Only students enrolled in classes 1 to 12th are eligible. There is no year restriction as long as the student is enrolled in a school programme.
 No. of Attempts: In a particular academic year, a student is allowed only one attempt.
How do I register for NSO 2017?

 The NSO is open to the students of classes 1 to 12.

 Prospectus containing the Registration forms are sent to all schools registered with Science Olympiad Foundation.

 Schools not registered may also request for prospectus by sending an email at info@sofworld.org/phonecall/fax01244951200.

 The school’s coordinating teacher will generate the students’ Roll Numbers as per the guidelines given.

 A copy of these roll numbers along with the Students’ Registration Sheet (SRS) and School Registration Form (SRF) should be sent to the Foundation’s office before the due date of submission of forms.

 Foundation will register the applicant school and the students and dispatch question papers and guidelines for conducting the examination.

 Principals / teachers may please note that any school can be registered as a center for NSO.

 No fee is required from the institution to become a registered examination centre.

 A minimum of 10 students need to be registered from each school for feasibility reasons.

 A nominal participation fee is charged from each student.
 Part of it is retained by the school for its expenses as exam center.
What are the NSO Exam Dates?
The Science Olympiad Foundation only releases dates for the current academic year.

 NSO 2016 exam dates are 15th & 24th Nov, 2016.
 Tentatively second round to be held in the month of JanuaryFebruary 2017.
What is the syllabus for NSO?
Class 1
• Section – I (Mental Ability):
 Numerals
 Number Name and Number Sense (2 digit numbers)
 Addition
 Subtraction
 Length
 Weight
 Time
 Money
 Geometrical Skills
 Patterns
 Odd One Out
 Series Completion
 Problems Based on Figures.
• Section – II (Science):
 Plants
 Animals
 Human Beings and Their Needs
 Good Habits and Safety Rules
 Air and Water
 Weather and the Sky
Class 2
• Section – I (Mental Ability):
 Numerals
 Number Name and Number Sense (3 digit numbers)
 Addition
 Subtraction
 Time
 Calendar
 Measurement of Weight
 Length and Temperature
 Geometrical Shapes
 Money
 Problems Based on Figures
 Series Completion
 Patterns
 Find Odd Numeral Out.
• Section – II (Science):
 Plants
 Animals
 Human Body
 Family
 Food
 Housing and Clothing
 Occasions and Festivals
 Occupation
 Good Habits and Safety Rules
 Transport and Communication
 Earth and Universe.
Class 3
• Section – I (Mental Ability):
 Numerals, Number Names and Number Sense (4 digit numbers)
 Addition
 Subtraction
 Fractional Numbers
 Multiplication
 Division
 Time
 Straight and Curved Lines
 Calendar
 Measurement of Weight and Capacity
 Geometrical Shapes
 Money
 Patterns
 Problems Based on Figures
 Odd One Out
 Series Completion
 CodingDecoding
 Mirror Image
 Embedded Figures.
• Section – II (Science) :
 Plants and Animals
 Birds
 Water
 Food
 House and Occupation Transport and Communication
 Human Body
 Earth and Universe
 Human Body
 Matter and Materials
 Light
 Sound and Force.
Class 4
• Section – I (Mental Ability) :
 Number and Numeration (5 digit numbers)
 Placevalue
 Addition
 Subtraction
 Multiplication
 Division
 Comparison
 Geometrical Shapes
 Symmetry
 Measurement of Length
 Weight and Capacity
 Time
 Money
 Fractional Numbers
 Pictorial Representation of Data
 Roman Numerals
 Multiples and Factors
 Perimeter of Various Shapes
 Problems Based on Figures
 Odd One Out, Series Completion
 CodingDecoding
 Direction Sense
 Mathematical Reasoning
 Mirror Images
 Embedded Figures
 Patterns
 Conversions
 Number Ranking
 Alphabetical Test.
Section – II (Science):
 Plants
 Animals
 Water
 Transport
 Earth and Universe
 Human Body
 Matter and Materials
 General Activities.
Class 5
• Section – I (Mental Ability) :
 Number Sense
 Regional and Roman Numerals
 Numbers up to Lakhs
 Multiples and Factors
 Fractional Numbers
 Addition
 Subtraction
 Multiplication
 Division
 Decimals
 Geometrical Shapes and Angles
 Symmetry
 Measurement of Length
 Time
 Money
 Weight
 Perimeter and Area of Square
 Rectangle and Circle
 Pictorial Representation of Data
 HCF and LCM
 Problems Based on Figures
 Odd One Out
 Series Completion
 CodingDecoding
 Mathematical Reasoning
 Mirror Images
 Embedded Figures
 Direction Sense
 Patterns
 Number Ranking
 Alphabetical Test.
• Section – II (Science):
 Animals
 Human Body and Health
 Plants and Food
 Water
 Natural Resources and Calamities
 Earth and Univierse
 Matter
 General Science.
Class 6
• Section – I (Mental Ability) :
 Knowing our Numbers
 Whole Numbers
 Playing with Numbers
 Basic Geometrical Ideas
 Understanding Elementary Shapes
 Integers
 Fractions
 Decimals
 Data Handling
 Mensuration
 Algebra
 Ratio and Proportion
 Symmetry
 Practical Geometry
 Logical Reasoning.
• Section – II (Science) :
 Motion and Measurement of Distances
 Light, Shadows and Reflections
 Electricity and Circuits
 Fun with Magnets
 Air and Water
 Sorting and Separation of Materials into Groups
 Changes Around Us
 Living Organisms and Their Surroundings
 Food and its components.
Class 7
• Section – I (Mental Ability) :
 Integers, Fractions and Decimals
 Data Handling
 Simple Equations
 Lines and Angles
 The Triangle and its Properties
 Congruence of Triangles
 Comparing Quantities
 Rational Numbers
 Practical Geometry
 Perimeter and Area
 Algebraic Expressions
 Exponents and Powers
 Symmetry
 Visualising Solid Shapes
 Logical Reasoning
 Conversions
 Simple Probability.
• Section – II (Science) :
 Heat, Motion and Time
 Electric Current and its Effect
 Winds, Storms and Cyclones
 Light
 Acids, Bases and Salts
 Physical and Chemical Changes
 Weather, Climate and Adaptations of Animals
 Fibres to Fabrics
 Nutrition in Plants and Animals
 Respiration in Organisms
 Transportation in Plants and Animals
 Reproduction in Plants
 Natural Resources and Their Conservation.
Class 8
• Section – I (Mental Ability) :
 Rational Numbers
 Exponents and Powers
 Direct and Inverse Variations
 Comparing Quantities
 Algebraic Expressions and Identities
 Factorization of Algebraic Expressions
 Linear Equations in One Variable
 More About Triangles
 Congruent Triangles
 Understanding Quadrilaterals
 Mensuration
 Data Handling
 Visualising Solid Shapes
 Introduction to Graphs
 Playing with Numbers
 Squares and Square Roots
 Cubes and Cube Roots
 Problem Based on Figures
 Odd One Out, Series Completion
 CodingDecoding
 Mathematical Reasoning
 Analytical Reasoning
 Mirror Images
 Embedded Figures.
• Section – II (Science) :
 Crop Production and Management
 Microorganisms
 Synthetic Fibres and Plastics
 Metals and NonMetals
 Coal and Petroleum
 Combustion and Flame
 Conservation of Plants and Animals
 Cell
 Reproduction in Animals
 Force and Pressure
 Friction
 Sound
 Chemical Effects of Electric Current
 Some Natural Phenomena
 Light
 Stars and Solar System
 Pollution of Air and Water.
Class 9
• Section – I (Mental Ability) :
 Number Systems
 Polynomials
 Coordinate Geometry
 Linear Equations in Two Variables
 Introduction to Euclid’s Geometry
 Lines and Angles
 Triangles
 Quadrilaterals
 Areas of Parallelograms and Triangles
 Circles
 Constructions
 Heron’s Formula
 Surface Areas and Volumes
 Statistics
 Probability
 Logical (Verbal and NonVerbal)
 Analytical Reasoning.
• Section – II (Science) :
 Motion, Force and Laws of Motion
 Gravitation
 Work and Energy
 Sound
 Matter in Our Surroundings
 Is Matter Around Us Pure
 Atoms and Molecules
 Structure of Atom
 Cell – The Fundamental Unit of Life
 Tissues
 Diversity in Living Organisms
 Why Do We Fall Ill
 Natural Resources
 Improvement in Food Resources.
Class 10
• Section – I (Mental Ability) :
 Real Numbers
 Polynomials
 Pair of Linear Equations in Two Variables
 Quadratic Equations
 Arithmetic Progressions
 Triangles
 Coordinate Geometry
 Introduction to Trigonometry
 Some Applications of Trigonometry
 Circles
 Constructions
 Areas Related to Circles
 Surface Areas and Volumes
 Statistics
 Probability
 Direction Sense Test
 Mathematical operations
 Number Ranking & Time Sequence Test
 CodingDecoding
 Distance
 Speed
 Time and General Reasoning Based on Prescribed Syllabus.
• Section – II (Science) :
 Chemical Reactions and Equations
 Acids, Bases and Salts
 Metals and NonMetals
 Carbon and its Compounds
 Periodic Classification of Elements
 Life Processes
 Reproduction in Organisms
 Heredity and Evolution
 LightReflection and Refraction
 Human Eye and Colourful World
 Electricity
 Magnetic Effects of Electric Current
 Sources of Energy
 Our Environment and its Management.
Class 11
• Section –I (Mathematics):
 Sets, Relations and Functions
 Mathematical Induction
 Logarithms
 Complex Numbers & Quadratic Equations
 Linear Inequations
 Differentiation
 Sequences and Series (A.P. & G.P. Misc.)
 Trigonometry
 Cartesian System of Rectangular Coordinates
 Straight Lines and Family of Straight Lines
 Circles
 Conic Section
 Trigonometry
 Permutations and Combinations
 Binomial Theorem
 Statistics
 Mathematical Logic
 Limits and Derivatives
 Probability
 Introduction to 3D Geometry
 Verbal and NonVerbal Reasoning.
OR
• Section –I (Biology):
 Diversity in the Living World
 Structural Organization in Plants and Animals
 Cell – Structure and Functions
 Plant Physiology
 Human Physiology.
• Section –II (Physics & Chemistry):
Physics:
 Units and Measurements
 Mechanics
 Properties of Matter
 Heat and Thermodynamics
 Oscillations
 Waves.
Chemistry:
 Some Basic Concepts of Chemistry
 Structure of Atom
 Classification of Elements and Periodicity in Properties
 Chemical Bonding and Molecular Structure
 States of Matter
 Thermodynamics
 Equilibrium
 Redox Reactions
 Hydrogen
 The sBlock Elements
 The pBlock Elements (Groups 13 and 14)
 Organic Chemistry – Some Basic Principles and Techniques
 Hydrocarbons
 Environmental Chemistry.
Class 12
Section –I (Mathematics):
 Sets
 Relations and Functions
 Mathematical Induction
 Logarithms
 Complex Numbers
 Linear Inequations
 Quadratic Equations
 Sequences and Series
 Trigonometry
 Cartesian System of Rectangular Coordinates
 Straight Lines and Family of Straight Lines
 Circles
 Conic Section
 Permutations and Combinations
 Binomial Theorem
 Exponential and Logarithmic Series
 Mathematical Logic
 Statistics & Probability
 Three Dimensional Geometry
 Vectors
 Stocks
 Shares and Debentures
 Average and Partition Values
 Index Numbers
 Matrices and Determinants
 Limits
 Differential Calculus
 Integral Calculus
 Verbal and NonVerbal Reasoning.
OR
• Section –I (Biology):  Reproduction
 Genetics and Evolution
 Biology in Human Welfare
 Biotechnology
 Ecology.
• Section –II (Physics & Chemistry):
Physics:
 Electricity and Magnetism
 Electromagnetic Induction
 AC
 E.M. Waves
 Optics
 Modern Physics
 Solids and Semiconductor Devices
 Communication Systems.
Chemistry:
 The Solid State
 Solutions
 Electrochemistry
 Chemical Kinetics
 Surface Chemistry
 General Principles and Processes of Isolation of Elements
 The pBlock Elements (Group 15 to 18)
 The d and f Block Elements
 Coordination Compounds
 Haloalkanes and Haloarenes
 Alcohols
 Phenols and Ethers
 Aldehydes, Ketones and Carboxylic Acids
 Amines
 Biomolecules
 Polymers
 Chemistry in Everyday Life.
What is the NSO Exam Pattern?
The National Science Olympiad is conducted at two levels:
Level 1: The first level of the test is organized in the respective schools of the participants during school hours.

 The level 1 competition is an objectivetype test of 60 minutes duration comprising 35 objectivetype (Multiple Choice) questions for class 1 to class 4 and 50 objectivetype (Multiple Choice) questions for class 5 to class 12.
 The question paper consists of three sections:
 For Class 1 to Class 10

 Section1: Logical Reasoning

 Section2: Science
 Section3: Achievers Section
 For Class 11 and Class 12

 Section1: Physics/Chemistry

 Section2: Achievers Section
 Section3 : Mathematics/Biology

 There are separate question papers for each class.

 The medium of the test is English.

 CBSE, ICSE/ISC and State Board syllabus is followed for setting the test papers.
 The exam is conducted during school hours.
Level 2: The level 2 is conducted for students of class 3 to class 12. The qualifiers to second round would include the following:
 Top 5% of candidates class wise who appear for the 1^{st} level exam. Due weightage to marks scored in different sections will be given. Each section is accorded separate weightage.
 Zonewise top 25 rank holders class wise.
 Class topper where at least 10 students from a class appear in the exam & scores 50% qualifying marks.
Class  Section  N0. of Questions  Marks/Question  Total Marks 
1 to 4  Logical Reasoning  5  1  5 
Science  25  1  25  
Achievers Section  5  2  10  
Grand Total  35  40  
5 to 10  Logical Reasoning  10  1  10 
Science  35  1  35  
Achievers Section  5  3  15  
Grand Total  50  60  
11 and 12  Physics and Chemistry  25  1  25 
Achievers Section  5  3  15  
Mathematics/Biology  20  1  20  
Grand Total  50  60 

 Questions of levelI Olympiad exams will be 60% from the current class syllabus and 40% from the previous class syllabus, e.g. Class7 NSO exam will have 60% questions from class7 syllabus and 40% questions from class 6 syllabus.

 Questions of levelII Olympiad exams will be from current class syllabus only.
 Questions in ACHIEVERS SECTION will be from current class syllabus only.
How should I prepare for NSO?
 Understand the pattern of NSO: You can visit the official website to learn the exam pattern for you corresponding class. Broadly, the exam comprises of 50 questions that are divided into three sections – Verbal and Nonverbal Reasoning, Science, and High order thinking questions. It is advised that you know this pattern well to streamline the preparations.
 Understand the standard of questions: If you are appearing for NSO, then expect questions of varying difficulty level. The questions test logical and observational skills of the students besides the conceptual knowledge. There will be no direct questions but rather an application of a previously studied concept is more likely to form the base of a question.
 Know the relevant books: You must thoroughly study course books suggested by your school board (ICSE/ CBSE/ State Board). In addition to this, you can refer to books available for Olympiad preparation to get a good rank in NSO.
The books prescribe for NSO are as follows:

 MTG NSO class wise Workbooks (For Class 1 to 10)

 SOF Olympiad Trainer’ Mobile Apps

 OSDS (Olympiad Skill Development System)

 Previous Years Papers

 Olympiad’s Book of Reasoning (for preparation for the reasoning section of NSO)
 EQuiz
Additionally, class XI and XII students can refer to the various publications like Chemistry Today, Biology Today, Mathematics Today and Physics For You and MTG books which contain useful matter including solved and model test papers of various National and International Olympiads.
 Practice sample papers: If you are appearing for the first time or are regulars at NSO, procure previous years papers beforehand. Solving the sample papers will give you a fair idea of the pattern of questions asked. They are also good for improving pace for attempting paper in the given time. The sample papers can be obtained from the official website.
Where can I find previous years’ papers?
Sample Papers are sent to all schools registered for Olympiad exams. SOF website also contains these papers http://www.sofworld.org/nso/nsoexam/samplepapers.html. Sample papers sent to the schools prior to the first level test are helpful and can be used for both levels of Olympiad exams. There are no officially available previous years’ papers.
When do I qualify?
2nd level exam held for Science Olympiads (NSO) for students from class 3 onwards. In case two or more students score same total marks, ranks will be awarded to student scoring higher marks in sections accorded higher priority, as under:
PRIORITY  SECTION 
1  Achiever’s section 
2  Science 
3  Logical Reasoning 
For class 11th and 12th  
1  Achiever’s Section 
2  Physics 
3  Chemistry 
4  Mathematics/Biology 
In case two or more students score equally in all sections, they will be accorded same rank.
CRITERIA FOR RANKING IN 2nd LEVEL OLYMPIAD EXAMS:
In case of level 2 exams, ranks will be accorded on the following criteria:
Total Marks scored in level 2 exam. In case two or more students score same number of marks, ranks will be determined on following criteria:
 Marks scored in sections in level two exam accorded higher priority.
 Total marks scored in Level one exam.
 Marks scored in sections, in level one exam, accorded higher priority.
In case two or more students score same marks under all the categories above, they will be awarded the same rank.
CRITERIA FOR RANKING SINGLE LEVEL OLYMPIAD EXAMS:
For class one & two students appearing in NSO ranks will be accorded on the following criteria.
 Marks obtained in the exam.
 In case two or more students score same number of marks, ranks will be determined on the basis of marks scored in sections accorded more priority.For ICSO, incase of tie, marks scored by a student in class 10 may be considered to determine rank.
 For other olympiads marks scored by a student in previous class may be considered to determine rank.
 In case two or more students score same marks under both the criteria above, they will be awarded the same rank.
 In case of any confusion decision of the Academic Council will be final binding.
How should I discuss my doubts?
Asking doubts and clearing them is important while preparing for NSO. Toppr brings you a community who has survived the test of time and wants to help out a real NSO aspirant. You can head over here and post your doubts and discuss them to get immensely helpful responses.