SOF International Science Olympiad - Class 8

The SOF International Science Olympiad Class 8 syllabus 2026–27 is divided into three sections for Level 1: Logical Reasoning, Science and Achievers Section.

Class 8 students receive 50 questions carrying 60 marks and get 60 minutes to complete the paper. The Science section contains 35 questions, Logical Reasoning contains 10 questions and the five higher-order Achievers questions together contribute 15 marks.

SOF ISO Class 8 Exam Pattern 2026–27

SOF places the Achievers Section first in its ranking-priority order, followed by Science and Logical Reasoning.

SOF ISO Class 8 Level 1 Syllabus

The official Level 1 syllabus contains three sections.

Section 1: Logical Reasoning

The official syllabus describes Section 1 as Verbal and Non-Verbal Reasoning.

The section is designed to assess a student's ability to identify relationships, patterns and logical structures rather than recall Science facts.

Typical preparation areas can include:

• Analogy
• Classification
• Series
• Coding patterns
• Direction-based reasoning
• Ranking
• Blood relations
• Mathematical reasoning
• Logical sequences
• Figure series
• Figure analogy
• Figure classification
• Mirror and water images
• Embedded figures
• Paper folding and cutting
• Pattern completion
• Visual relationships

The exact mix of reasoning questions can vary from paper to paper.

Verbal Reasoning

Verbal reasoning uses words, symbols, numbers or written relationships.

Students may encounter questions involving:

• Analogy
• Classification
• Number and letter series
• Coding-decoding
• Logical sequence
• Direction sense
• Ranking and order
• Relations
• Statement-based reasoning

These questions usually require students to identify a hidden rule and apply it correctly.

Non-Verbal Reasoning

Non-verbal reasoning is based mainly on figures and visual patterns.

Questions may use:

• Shapes
• Diagrams
• Geometrical figures
• Symbol sequences
• Rotations
• Reflections
• Missing figures
• Pattern transformations
• Figure matrices

Section 2: Science

Science is the largest Level 1 section. It contains 35 questions for 35 marks.

The official Class 8 Science syllabus consists of 13 broad units.

1. Exploring the Investigative World of Science

This unit develops understanding of how scientific investigations are carried out.

Preparation can include concepts such as:

• Scientific observation
• Asking scientific questions
• Forming hypotheses
• Planning investigations
• Identifying variables
• Measurement
• Recording observations
• Analysing results
• Drawing conclusions
• Experimental errors
• Scientific reasoning

Questions may present a situation or experiment and ask students to identify the best conclusion or experimental method.

2. The Invisible Living World: Beyond Our Naked Eyes

This topic focuses on microscopic life.

Important areas may include:

• Microorganisms
• Bacteria
• Fungi
• Protozoa
• Microscopic organisms
• Useful microorganisms
• Disease-causing microorganisms
• Food preservation
• Fermentation
• Microorganisms in agriculture
• Microorganisms and decomposition

Students should understand both beneficial and harmful roles of microorganisms.

3. Health: The Ultimate Treasure

This unit deals with health, diseases and maintaining a healthy body.

Preparation may include:

• Health and hygiene
• Nutrition
• Communicable diseases
• Non-communicable diseases
• Disease prevention
• Immunity
• Vaccination
• Balanced diet
• Deficiency diseases
• Personal hygiene
• Community health

Questions may connect everyday situations with health and disease concepts.

4. Particulate Nature of Matter

This topic examines matter at the particle level.

Important concepts can include:

• Particles of matter
• Arrangement of particles
• Movement of particles
• Inter-particle space
• Diffusion
• States of matter
• Changes of state
• Effect of temperature
• Physical changes

Olympiad questions may ask students to explain observations using the particle model rather than merely identify definitions.

5. Elements, Compounds and Mixtures

Students should understand the fundamental classification of substances.

Important areas include:

• Elements
• Compounds
• Mixtures
• Atoms
• Molecules
• Pure substances
• Homogeneous mixtures
• Heterogeneous mixtures
• Properties of elements and compounds
• Separation of mixtures
• Physical and chemical properties

Students should be able to distinguish an element, compound and mixture from descriptions or experimental observations.

6. How Nature Works in Harmony

This unit focuses on interactions within nature and living systems.

Preparation can include:

• Interdependence of organisms
• Food chains
• Food webs
• Ecological balance
• Producers
• Consumers
• Decomposers
• Natural cycles
• Human impact on ecosystems
• Conservation

Application questions can involve environmental situations and ask students to predict the effect of disturbing one component of an ecosystem.

7. Exploring Forces

This is a major Physics-oriented unit.

Important concepts may include:

• Force
• Contact forces
• Non-contact forces
• Effects of force
• Friction
• Gravitational force
• Magnetic force
• Electrostatic force
• Balanced and unbalanced forces
• Motion under force

Students should be able to analyse how forces affect movement, speed, direction and shape.

8. Solute, Solvent and Solutions

This unit deals with solutions and their components.

Important areas include:

• Solute
• Solvent
• Solution
• Solubility
• Soluble and insoluble substances
• Saturated solutions
• Unsaturated solutions
• Effect of temperature
• Concentration
• Separation of dissolved substances

Olympiad questions may involve real-life solutions and ask students to determine how changing temperature, solvent quantity or solute affects the system.

9. Electricity: Magnetic and Heating Effects

This unit combines electricity with two major effects of electric current.

Students should prepare:

• Electric current
• Electric circuits
• Conductors and insulators
• Heating effect of electric current
• Electrical heating appliances
• Fuse
• Magnetic effect of electric current
• Electromagnets
• Factors affecting electromagnet strength
• Applications of electromagnets

10. Light: Mirrors and Lenses

This unit examines reflection, mirrors and basic lenses.

Important areas include:

• Reflection of light
• Laws of reflection
• Plane mirrors
• Images formed by mirrors
• Multiple reflection
• Concave mirrors
• Convex mirrors
• Lenses
• Convex lenses
• Concave lenses
• Image characteristics
• Applications of mirrors and lenses

11. Our Home: Earth, a Unique Life Sustaining Planet

This unit focuses on the features that make Earth capable of supporting life.

Preparation areas may include:

• Earth's environment
• Atmosphere
• Water
• Soil
• Temperature
• Conditions required for life
• Natural resources
• Habitability
• Environmental balance
• Human impact on Earth

Students should understand relationships between Earth's physical conditions and living systems.

12. Pressure, Winds, Storms and Cyclones

Important areas include:

• Pressure
• Atmospheric pressure
• Air pressure
• Pressure differences
• Wind formation
• Weather systems
• Storms
• Cyclones
• Cyclone formation
• Safety during cyclones

Questions may ask students to interpret how pressure differences lead to air movement and severe weather.

13. Keeping Time with the Skies

This unit connects astronomical observations with time.

Preparation may include:

• Movement of celestial bodies
• Earth's rotation
• Earth's revolution
• Day and night
• Time measurement
• Sky observations
• Sun
• Moon
• Stars
• Calendrical concepts
• Astronomical cycles

Students should focus on understanding relationships between observed celestial motions and measurements of time.

The complete official Class 8 Science unit list is published by SOF.

Section 3: Achievers Section

These questions are based on the Science syllabus from Section 2 but test Higher Order Thinking Skills.

The Achievers Section can require students to:

• Combine two or more concepts
• Interpret unfamiliar situations
• Analyse experiments
• Interpret diagrams
• Evaluate statements
• Predict outcomes
• Identify exceptions
• Apply scientific principles
• Compare several alternatives
• Use multi-step reasoning

Is the Achievers Section a Separate Syllabus?

Students therefore do not need to study an additional Science syllabus.

They need to practise the same concepts at a deeper application level.

Class 8 and Class 7 Syllabus Distribution

SOF applies the following rule to Level 1:

This rule applies to ordinary Level 1 questions.

Why Class 7 Revision Matters

A Class 8 student who studies only the listed Class 8 Science units can leave a significant portion of Level 1 preparation uncovered.

The previous-class component can test foundational ideas that support Class 8 concepts.

Class 7 Science revision should therefore be treated as an integral part of Level 1 preparation rather than optional extra reading.

Students should particularly revise Class 7 concepts that connect naturally to the Class 8 syllabus.

SOF ISO Class 8 Level 2 Exam Pattern

Class 8 students qualifying from Level 1 can appear in Level 2.

Level 2 therefore contains 50 questions for 60 marks.

There is no separate Logical Reasoning section in the Class 8 Level 2 pattern.

SOF ISO Level 1 vs Level 2

SOF confirms that Level 2 questions are based entirely on the current class syllabus.

Does Level 2 Have Logical Reasoning?

Instead, Level 2 has 45 Science questions and 5 Achievers questions.

Students qualifying for Level 2 should therefore shift a greater proportion of their preparation toward Science and higher-order Science applications.

Is Level 2 Harder Than Level 1?

Level 2 is designed for students who have already performed strongly at Level 1.

Although the official Class 8 syllabus remains based on current-class Science, questions can require stronger:

• Conceptual understanding
• Application
• Reasoning
• Experiment interpretation
• Diagram analysis
• Multi-step thinking

Level 2 should therefore not be approached simply by memorising textbook statements.

Does SOF ISO Have Negative Marking?

Students should still answer carefully because accuracy directly affects score and rank.

How Much Time Is Available Per Question?

Students receive 60 minutes for 50 questions.

However, questions do not require equal time.

Straightforward Science or reasoning questions may take considerably less time, while Achievers questions can require deeper analysis.

Students should avoid spending excessive time on one difficult question early in the paper.

Which Section Carries the Most Questions?

Science is the largest Level 1 section with 35 questions and 35 marks.

However, Achievers questions have the highest mark value per question.

Which Section Is Most Important for Rank?

All sections contribute to the total score, but the Achievers Section becomes particularly important because only 5 questions contribute 15 marks.

It is also placed at the highest priority in SOF's section-priority order for the Class 8 Level 1 pattern.

Are Diagram-Based Questions Part of the Exam?

The syllabus contains several areas where visual questions naturally arise.

Examples include:

• Mirrors and lenses
• Electric circuits
• Magnetic effects
• Experimental setups
• Forces
• Microscopic life
• Astronomical observations
• Non-verbal reasoning

Are Experiments Important?

Yes.

The unit Exploring the Investigative World of Science places scientific investigation directly within the official Class 8 syllabus.

Experimental reasoning can test whether students understand:

• Variables
• Observations
• Measurements
• Controls
• Predictions
• Results
• Conclusions

The focus is therefore not simply on remembering factual statements.

Is the SOF ISO Syllabus the Same as the School Science Textbook?

The syllabus overlaps strongly with school Science, but SOF ISO is not simply a conventional school examination.

SOF states that the Olympiad assesses scientific reasoning and logical ability and is designed to test application and problem-solving skills.

Does SOF Follow CBSE Only?

No.

SOF's Science Olympiad is intended for students from participating schools across different educational boards.

The current 2026–27 preparation material also states that coverage extends across CBSE, ICSE, IB and other recognised State/international board syllabi.