Science Olympiad & Talent Search

IEO Syllabus : Class-wise Topics for Classes 1 to 12

The IEO syllabus is class-wise. The Science Olympiad Foundation (SOF) publishes a separate topic list for each class from 1 to 10, covering vocabulary, grammar, reading for information, and the language used in everyday situations. This page puts those lists in one place for the 2026-27 cycle so a student can see what to study, in what order, and how it connects to the marks in the paper.

Two points are worth knowing before you start. SOF says its tests take each school year's syllabus into account but are not directly tied to it, and they focus on communication and use of English rather than rote learning. Also, for classes 11 and 12 SOF lists the syllabus only as "as per your prescribed syllabus", so no official topic list exists for those classes. The topics for those classes below are therefore study guidance, not an official list.

Table of Contents

  • IEO Syllabus at a Glance

  • How the Syllabus Maps to the Paper

  • IEO Syllabus for Classes 1 and 2

  • IEO Syllabus for Classes 3 and 4

  • IEO Syllabus for Classes 5 to 7

  • IEO Syllabus for Classes 8 to 10

  • IEO Syllabus for Classes 11 and 12

  • Level 1 and Level 2: What Changes in Study Planning

  • How to Cover the IEO Syllabus

IEO Syllabus at a Glance

Class

Official syllabus status

Paper (Level 1)

Classes 1 and 2

Topic list published, single level

35 questions, 40 marks, 60 minutes

Classes 3 and 4

Topic list published, two levels

35 questions, 40 marks, 60 minutes

Classes 5 to 10

Topic list published, two levels

50 questions, 60 marks, 60 minutes

Classes 11 and 12

"As per your prescribed syllabus"; no topic list

50 questions, 60 marks, 60 minutes

The official syllabus hub is at https://sofworld.org/sof-international-english-olympiad-syllabus.

How the Syllabus Maps to the Paper

SOF describes the syllabus in four sections, but the question paper uses four differently named sections. The names do not line up one to one, so it helps to see the link.

Syllabus section

Paper section it feeds

What it tests

Word power or language knowledge

Word and Structure Knowledge

Vocabulary, grammar, spelling, idioms

Reading and information retrieval

Reading

Finding and understanding information in texts

Functional language

Spoken and Written Expression

Choosing the right expression for a situation

Higher-order thinking

Achievers Section

Harder questions drawn from the other three

There is no separate Achievers syllabus. Those five questions come from the same topics, only at a higher level of reasoning, and they carry the most marks per question.

IEO Syllabus for Classes 1 and 2

At this stage the exam checks basic word sense and simple sentence use. Both classes take a single level.

Class 1

  • Word skills: jumbled letters, word meanings and opposites, naming a word from a picture, making words, feminine and masculine, one and many, word pairs, odd one out, and animals with their babies, sounds and groups.

  • Grammar: nouns, pronouns, verbs, conjunctions, articles, adverbs, prepositions, adjectives, basic tenses and punctuation.

  • Reading and expression: comprehension of prose and poetry, picture composition, and spoken and written expression.

  • Achievers Section: higher-order questions drawn from the topics above.

Class 2

  • Word and structure: collocations, spellings, synonyms and antonyms, words from pictures, animal words, phrases, idioms, nouns, pronouns, verbs, adverbs, adjectives, articles, prepositions, conjunctions, contractions, word order, punctuation and simple tenses.

  • Reading: finding information in stories and short dialogues, and locating details in short texts such as messages and invitations.

  • Functions: thanking, greeting, asking for permission and introducing oneself.

  • Higher-order thinking: questions based on the three sections above.

IEO Syllabus for Classes 3 and 4

From class 3, students can reach Level 2, and the topics start to include proverbs, question tags and one-word substitution.

Class 3

Section / Topic Category

Detailed Topics & Components

Word Power

Homophones, collocations, spellings, words related to animals, household things, clothes, emotions and food, synonyms and antonyms, gender, number, proverbs, idioms, one-word substitution

Grammar

Nouns, pronouns, verbs, adverbs, adjectives, articles, prepositions, simple tenses, conjunctions, punctuation, basic questions, question tags, jumbled words

Reading & Information

Stories and anecdotes, pictures, timetable formats, short texts (messages, invitations)

Functions

Apology, greeting, introduction, request (with situational variations)

Class 4

Section / Topic Category

Detailed Topics & Components

Language Knowledge

Collocations, spellings, gender, singular and plural, one-word substitution, synonyms and antonyms, parts of speech, contractions, articles, prepositions, conjunctions, tenses, punctuation, jumbled words, basic questions, question tags, proverbs and idioms

Reading & Information Retrieval

Stories and anecdotes, pictures, timetables, short texts (messages, invitations)

Functional Language

Apology, greeting, introduction, request

Higher-Order Thinking

Advanced questions based on the other three sections

Class 5

Section / Topic Category

Detailed Topics & Components

Word & Structure

Spellings, collocations, idioms, homonyms and homophones, synonyms and antonyms, nouns, pronouns, verbs and phrasal verbs, adverbs, adjectives, articles, prepositions, conjunctions, punctuation, tenses, active and passive voice, reported speech

Reading

News headlines, messages, letters, news reports, timetables, short texts (menu cards, dialogues)

Functions

Requests, refusals, apologies in different situations

Class 6

Section / Topic Category

Detailed Topics & Components

Language Knowledge

Parts of speech, punctuation, jumbled words, tenses, voices, narration, spelling, collocations, phrasal verbs, idioms, synonyms and antonyms

Reading & Information Retrieval

News headlines, brochures, formal and informal letters, itineraries, short narratives, timetables, news stories, diary entries, messages, poster-making tasks

Functional Language

Agreement, disagreement, requests, refusals, apologies

Class 7

Section / Topic Category

Detailed Topics & Components

Language & Structure

Spellings, collocations, vocabulary on travel/location/activities, homonyms and homophones, synonyms, antonyms, analogies, one-word substitutes, phrasal verbs, idioms, modals, word order, parts of speech, punctuation, tenses, voice, narration

Reading

News stories, brochures, letters, advertisements, itineraries, short narratives, biographies, notices, messages

Situational Functions

Requests, refusals, apologies, preferences, expressions of intent

Class 8

Section / Topic Category

Detailed Topics & Components

Vocabulary & Grammar

Synonyms, antonyms, analogies, spelling, collocations, phrasal verbs, idioms, proverbs, homonyms and homophones, one-word substitutes, parts of speech, prepositional and participle phrases, determiners, jumbled words, punctuation, tenses, voice, narration, question tags

Themed Vocabulary

Leisure, household items and issues, social causes, outdoor locations and activities

Reading

News reports, blurbs, dictionaries, instruction manuals, messages, longer texts (editorials, essays)

Functional Language

Requesting, giving information, expressing surprise, pronunciation

Class 9

Section / Topic Category

Detailed Topics & Components

Language Knowledge

Synonyms, antonyms, analogies, spelling, one-word substitutes, word order, parts of speech, punctuation, jumbled words, voice, concord, question forms, tenses, conditionals, modals, reported speech, collocations, phrasal verbs, idioms, homonyms

Themed Vocabulary

Social causes, travel, workplace

Reading

Flyers, classifieds, dictionaries, instruction manuals, message formats, editorials, essays

Functional Language

Giving advice, stating preferences, discussing probability, making offers

Class 10

Section / Topic Category

Detailed Topics & Components

Language Knowledge

Synonyms, antonyms, analogies, spellings, one-word substitutes, word order, parts of speech, punctuation, voices, narration, concord, question forms, tenses, conditionals, modals, collocations, phrasal verbs, idioms, homonyms and homophones

Themed Vocabulary

Weather, countries, languages and peoples, global problems

Reading

Encyclopedias, dictionaries, instruction manuals, messages, longer texts (editorials, essays), making inferences from advanced texts

Functional Language

Giving and accepting compliments, agreeing, disagreeing, requesting, seeking information, pronunciation

IEO Syllabus for Classes 11 and 12

Section / Focus Area

Key Concepts & Guidance

Core Foundations

Revision of Class 10 topics (Grammar, Vocabulary, Phrasal Verbs, Idioms, Concord, Conditionals, Voice, Narration) combined with the standard school English curriculum

International English Usage

Standard natural phrasing vs. literal translations (e.g., "I'm having lunch" instead of "I'm taking my lunch")

Advanced Grammar

Stative verbs (rules on non-continuous usage), subtle shifts in modal verbs across promises/possibilities/conditions

Reading & Critical Thinking

Inference extraction from complex, long-form texts, editorials, and argumentative essays

Spoken & Contextual Language

Everyday spoken expressions, nuanced situational responses, formal vs. informal registers

Level 1 and Level 2: What Changes in Study Planning

Area

Level 1

Level 2 (classes 3 to 12)

How to plan

Word and Structure

Core section, 15 to 30 questions

Larger share, 20 to 35 questions

Grammar and vocabulary drills pay off most in both levels

Reading

10 questions

10 questions

Daily reading practice carries forward unchanged

Spoken and Written Expression

5 questions

Not in the paper

Needed for Level 1 only

Achievers Section

5 questions

5 questions

Revise every topic at depth, not just the easy ones

The SOF FAQ page says students who move up a class before Level 2 still use the syllabus of the class in which they took Level 1. A student who plans for Level 1 well is therefore already most of the way to Level 2.

How to Cover the IEO Syllabus

  1. Weeks 1 to 3, build the base: Cover parts of speech, tenses and punctuation for your class, and keep a notebook of new words and idioms.

  2. Weeks 4 to 6, add the harder areas: Move to voice, narration, conditionals, modals and collocations, and start timed reading of letters, notices and short articles.

  3. Weeks 7 to 8, practise situations: Work through functional language, such as requests, apologies and compliments, and pronunciation for classes 8 to 10.

  4. Final weeks, test and revise: Attempt full papers in 60 minutes, then review each wrong answer by topic.

Frequently Asked Questions

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