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The Junior Science Olympiad program follows 5 stages of examination:

Stage I: National Standard Examination in Junior Science (NSEJS)

Stage II: Indian National Junior Science Olympiad (INJSO)

Stage III: Orientation cum Selection Camp (OCSC) in junior science

Stage IV: Pre-departure Training Camp (PDT) for IJSO

Stage V: Participation in International Junior Science Olympiad (IJSO)

Past Year Papers of NSEJS

2011 2012 2013

2014 - Set 1 | Set 2 | Set 3 | Set 4 | Set 5 | Set 6

2015  2016 2017  

Introduction to Indian National Junior Science Olympiad (INJSO)

Indian National Junior Science Olympiad is organized every year by HBCSE at about 15 centres in the country.Indian National Junior Science Olympiad is the second step that offers an opportunity for Indian students to represent India in world-wide championships. It is organized jointly by the Indian Association of Physics Teachers (IAPT) and Homi Bhabha Centre for Science Education (HBCSE).

INJSO Eligibility Criteria

In order to appear for INJSO, students need to qualify the (NSEJS) examination. In addition to this, those students who have been exempted as described in the Enrollment page are also eligible to appear for INJSO.

The tentative date and time of INJSO 2015 examination is as follows:

January 31, 2015 (Saturday):  01:00 pm --- 04:00 pm (3 hours)

INJSO Syllabus

The syllabus for INJSO will be broadly similar to NSEJS with emphasis on conceptual understanding and quantitative reasoning. Questions and problems in National Olympiads are usually non-conventional and of high difficulty level, comparable to International Olympiads.

S. No.




Science Skills and Safety

  • Understanding scientific methods and working in the laboratory.

  • Follow instructions in the laboratory

  • Identify and use basic laboratory equipment

  • Draw scientific diagrams of apparatus

  • Measure temperature and volume

  • Follow safety techniques when using equipment

  • Make observations using the five senses

  • Describe the scientific method

  • Make inferences based on observations

  • Record a science experiment using standard headings

  • Use scientific language

  • Collect, represent and interpret data in tables and graphs


Pushes and Pulls

  • Understanding of what forces are and what they can do

  • Measure forces using a spring balance

  • Describe what forces are and what they can do

  • Calculate the density of an object

  • Carry out experiments with friction, gravity and density.

  • Explain the difference between mass and weight

  • Say what friction is and explain how it can be helpful or a nuisance.

  • Explain things in terms of the pull of gravity


Survival in the Environment

  • Understanding of how physical and behavioural adaptations help animals survive.

  • Define the terms habitat and adaptation

  • List characteristics that help an organism survive

  • Distinguish between an animal’s living and physical environment

  • Classify adaptations as structural or behavioural

  • List the physical conditions that affect aquatic animals

  • Research, carry out and write up a study of a particular environment

  • Make inferences from observations


Solids, Liquids and Gases

  • Understanding of the differences between solids, liquids and gases.

  • Explain the three states of matter

  • Measure the temperature of melting ice

  • Recall the boiling point of water and the melting point of ice

  • Draw simple graphs

  • Calculate the density of materials

  • Measure mass using a balance

  • Use a particle model



  • Define the terms stimulus and respond and how they relate

  • Understanding of how our body senses help us respond to our environment.

  • Describe how nerves carry massages

  • Describe the various senses in our body

  • Investigate the senses

  • Investigate how fast our muscles react

  • Explain how muscles move arms and legs



  • Understanding of the different types of energy and energy changes.

  • Identify and describe the various forms of energy

  • Describe what energy is and where it comes from

  • Explain the difference between stored energy in action

  • Understand how sound is caused

  • Explain everyday happenings in terms in energy changes

  • Understand that fossil fuels are a non-renewable resource

  • Use different forms of energy to make an object move

  • Conduct an experiment involving energy changes


How Life Begins

  • Understanding of how new life is created in humans.

  • Describe the sex cell of humans

  • Describe the differences between animal and plant cell

  • Describe the human reproductive organs

  • Observe the development of a baby during pregnancy

  • Understand the changes that take place in boy’s and girl’s bodies during puberty


Solving Problems in Science

  • Understanding the scientific method.

  • Write up report of experiments

  • Describe the scientific method

  • Write hypothesis

  • Test a hypothesis by doing an experiment

  • Design an experiment using the scientific method


Acids and Bases

  • Understanding what are acids and bases.

  • Understand ph and its practical uses define neutralisation

  • Describe the properties of acids and bases

  • Use ph paper to check acidity

  • Use and make indicators

  • Use acids and bases safely

  • To be aware of the formation and effect of acid rain

  • Apply knowledge of acids and bases to everyday situations


Interdisciplinary “Space” Studying the Universe

  • Know the order of the planets

  • Understanding our solar system and space exploration.

  • Describe key features of each planet

  • Describe spiral, elliptical and irregular galaxies

  • Distinguish between comet, asteroids and meteors

  • Explain the significance of star colour

  • Be aware of the impact of space exploration

  • Identify major constellations

  • Make scale model of planets

  • Plot positions of stars

  • Design and make a space mobile or building from recycled materials


Materials from the Earth

  • Understand what natural resources are

  • Understanding natural resources, where they are found and what they are used for.

  • Present information on renewable resources

  • name useful substances made from natural materials e.g. glass and concrete

  • Find out whether or not natural resources are renewable

  • Understand how materials and rocks are mined and how they are used

  • Map the locations of various mineral resources around the world Understand how fossil fuels, uranium and water are used to provide energy


Science and technology

  • Explain the difference between science and technology

  • Understanding of how technology has been used to solve problem.

  • Find out about some inventors and inventions

  • Be aware of inventions

  • Design a test to solve an everyday problem

  • Carry out a science fair experiment

  • Research to find relevant information


Keeping Healthy

  • Understanding the digestive and circulatory systems.

  • Use the model to explain how food passes from the small intestine to the bloodstream

  • Explain what the part of the digestive system do during digestion

  • Describe the importance of fibre in the diet

  • Understand the effect of exercise on pulse and breathing rates

  • Investigate the structure and care of teeth

  • Describe how the blood carries food and oxygen to the body cells

  • Describe the structure of the heart and how to take care of it


Batteries and Bulbs

  • Understanding of batteries’ concept and circuits.

  • Draw circuit diagrams

  • Make simple circuits

  • Know the difference between series and parallel circuits

  • Understand about resistance and short circuits

  • Describe the properties of conductors and insulators

  • Explain how electrical safety device work (fuses and earths)

  • Know the component of electrical plug

  • Understand the rules for using electrical safely


Atoms and Molecules

  • Describe the practical theory to explain the properties of solids, liquids and gases

  • Understanding of atoms, molecules, elements and compounds.

  • Know the name of some common molecules

  • Explain that matter is made of atoms and molecules

  • Describe what elements and compounds are

  • Understand the basic structure of the atom

  • Know the first twenty elements and their symbol from the periodic table

  • Explain the difference between elements and compounds in termof atoms and molecules

  • Know about some of the people who discovered different elements

  • Write a simple word equation

  • Know the formula of some common compounds


Cycles in nature

  • Understanding of food chains and webs

  • Describe how bacteria and fungi recycle substances

  • Use food chains to show the link between animals and plants

  • Construct food webs

  • Know the difference between scavengers and decomposers


What are Things made of

  • Understanding of the concept of the periodic table and the elements

  • Review particle theory, atoms, molecules, elements and compounds

  • Atoms and Molecules

  • Understand basic patterns of the periodic table

  • Learn to write simple equation

  • Learn the first 20 elements by symbol and name

  • Know the basic structure of the atom, protons, neutrons, electrons

  • Know about alloy

  • Look at where metals and other important materials come from and what they are used for



  • Understanding how infections disease is caused and transmitted

  • Know which organism cause common diseases

  • Describe the microorganisms that cause disease

  • Understand how our body fights disease

  • Understand about how antibiotics are used to fight disease

  • Understand the history of disease and vaccination


Global Consumer Science

  • Understanding of scientific testing of consumer product and the impact of consumerproducts on our health and environment.

  • Understand the difference between objective and subjective testing

  • Use the steps of scientific testing

  • Calculate the waste from packaging

  • Know about the argument surrounding genetically modified foods

  • Understand how long different substances take to break down

  • Research recycling

  • Understand the impact of consumer products on our environment


Science and the Road

  • Understanding of Newton’s First Law (Inertia), friction, Reaction Time, Acceleration, Carsafety.

  • Know about car safety features

  • Understand the main reasons for car accidents

  • Be aware of road safety

  • Measure reaction time

  • Calculate speed and acceleration

  • List the factors affecting stopping time


Interdisciplinary “The Body” Life Goes On

  • Understanding of human reproduction and inheritance.

  • Recognise variation in human characteristics

  • Describe the structure and function of the male and female reproductive system

  • Describe the role of genes and chromosomes in human inheritance

  • Be able to calculate the chance of children being born male or female using model

  • Use family trees to determine the features of family members

  • Use grids to predict variation in offspring characteristics

  • Describe genetic engineering and social implications


Light and Colour

  • Understanding of how light and colour are produced.

  • Explain why things are coloured

  • List the colours of spectrum

  • Describe how long and short sightedness can be corrected with lenses

  • Find out how we see colours and why colour blindness occurs

  • Observe how light travels in straight lines

  • Investigate how different colours are made

  • Observe how images from when light reflect from when light reflect from mirror

  • Predict the colour produced when filters are used

  • Investigate how lenses bend light to form images


Forensic Science

  • Understanding of how science is used in crime detection.

  • Understand how scientists collect and interpret the physical evidence from a crime

  • Describe the job of a forensic scientist

  • Investigate hypothetical crimes

  • Use chromatography to examine ink samples

  • Examine fingerprints

  • Use indicator to detect the presence of certain substances

  • Understand about ballistic and genetic evidence

  • Examine evidence using a microscope

  • Understand about the use of atomic absorption spectrophotometers to examine traces of chemical

  • Write hypothetical forensic reports

  • Construct evidence table and detect patterns


Mathematics Ability

  • Understanding of the mathematics

  • Statistics

  • Fraction

  • Simple Trigonometry

  • Logarithms

  • Simple Geometry

  • Arithmetic and Geometric Array

  • Power and square roots

  • Quadratics Equation

Books for INJSO

Following are some books which can be used while you prepare for the INJSO.

                                                                    Books for INJSO

  • Science IQ challenge

  • Maths IQ challenge

  • Master Mental Ability

  • Math Olympiad problems

  • 1000 Biology Quiz

  • Solved Olympiad Problems of National & International Exams

  • Five Hundred Mathematical Challenges

  • Mathematical Olympiad problem book

  • Biology Olympiad book and Physics Olympiad problems book

INJSO Exam Structure

Indian National Junior Science Olympiad past papers have been comparable with international Olympiads in terms of difficulty level and sophistication. These tests are also non-conventional in nature.

An INJSO question paper is of three hours. To know more about the nature and format of the INJSO examination paper, you can check out Indian National Science Olympiad previous year papers available with

NSO Paper Pattern and Marking scheme

Know the complete details of National Science Olympiad (NSO) 2014 Paper Pattern as exam type, questions, subjects and marking scheme with askIITians.  

SOF Level 1



No. of Questions

Marks per question

Total Marks

1 to 4

Logical Reasoning










Achievers Section





Grand Total 




5 to 10

Logical Reasoning










Achievers Section





Grand Total 




11 and 12

Physics & Chemistry





Achievers Section










Grand Total 




SOF Level 2



No. of Questions

Marks per question

Total Marks

3 to 4 






Achievers Section





Grand Total 




5 to 10






Achievers Section





Grand Total 




11 and 12

Physics & Chemistry





Achievers Section










Grand Total 




How can askIITians help you?

askIITians offers excellent tutorial packages for INJSO. The INJSO study material includes a number of Indian National Junior Science Olympiad past year papers with solutions as well as Indian National Junior Science Olympiad previous year papers with Indian National Junior Science Olympiad answer key.

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Course Features

  • 731 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
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Course Features

  • 728 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution