SOF IEO for Class 3

IEO Class 3 at a glance

Conducted by

Science Olympiad Foundation

Questions for Class 3

35

Duration

60 min

Total marks

40

Fee

₹150-200

Exam window

Sep-Nov (L1); Feb (L2)

Levels

2 (Level 2 for Class 3-12)

Classes eligible

1-12

Level 1 is held in Sep-Nov and Level 2 in Feb. Each school picks its exam day inside the window; the date for your child comes from the school. Confirm on sofworld.org.

Exam pattern for Class 3

35 questions for 40 marks, 60 minutes, all multiple choice. No negative marking.

Ties are broken by section, in this order: Achievers > Word/Structure > Reading > Spoken/Written (M4,M1,M2,M3).

Try 8 real Class 3 questions

Straight from the PrepMojo question bank, written to the pattern of the SOF papers. Have a go, then open the answer.

1. Question 1 · English

   My uncle gave ___ apple to my sister and ___.

   1. A.a ... I
   2. B.an ... me
   3. C.an ... I
   4. D.a ... me
   Show answer

   Answer: B. an ... me

   We say: My uncle gave an apple to my sister and me. Apple begins with a vowel sound, so an; and after 'to my sister and', the receiver is me, never I.

2. Question 2 · English

   A ___ of ships sailed out to sea.

   1. A.Litter
   2. B.Flock
   3. C.Fleet
   4. D.Herd
   Show answer

   Answer: C. Fleet

   We say: A fleet of ships sailed out to sea. 'Herd' does not fit, because herd is for animals, not ships.

3. Question 3 · English

   Fill in the blank with the word that fits the meaning. The library must be kept ______ so that everyone there can read in peace.

   1. A.quiet
   2. B.cold
   3. C.clean
   4. D.dark
   Show answer

   Answer: A. quiet

   Reading in peace is spoilt by noise, so the rule the sentence gives is about sound. The sentence then reads: The library must be kept quiet so that everyone there can read in peace.

4. Question 4 · English

   Choose the option that best completes the analogy. Hot : Cold :: Big : ____________

   1. A.Fast
   2. B.Loud
   3. C.Small
   4. D.Old
   Show answer

   Answer: C. Small

   'Small' correctly completes the analogy. 'Old' is often guessed instead, because 'old' describes age, a different quality from size, so it is not the opposite of big.

5. Question 5 · English

   You say: "See you soon!" When do you say this?

   1. A.When a cousin who has been staying with you goes home
   2. B.When your cousin arrives to stay
   3. C.When you will never meet the person again
   4. D.When you meet a friend in the morning
   Show answer

   Answer: A. When a cousin who has been staying with you goes home

   'See you soon!' is said when a cousin who has been staying with you goes home - not when your cousin arrives to stay, because arriving is welcomed, and this is said at a parting.

6. Question 6 · English

   Teacher: Well done on your test! What is the best thing to say?

   1. A.It was too easy anyway.
   2. B.Thank you, ma'am.
   3. C.Finally you noticed.
   4. D.I know I am smart.
   Show answer

   Answer: B. Thank you, ma'am.

   The right thing to say is: 'Thank you, ma'am.' - 'I know I am smart.' does not fit, because it boasts instead of accepting the praise politely.

7. Question 7 · English

   Fill in the blank with the word that fits the meaning. Even after ten failures Meera did not lose ______ that she would win one day, and she tried once more.

   1. A.anger
   2. B.courage
   3. C.hope
   4. D.fear
   Show answer

   Answer: C. hope

   Trying once more after ten failures means she was still expecting to win, and the word for going on expecting a good thing is the one the blank needs. The sentence then reads: Even after ten failures Meera did not lose hope that she would win one day, and she tried once more.

8. Question 8 · English

   Which word means the opposite of Friendly?

   1. A.Quiet
   2. B.Unfriendly
   3. C.Shy
   4. D.Lonely
   Show answer

   Answer: B. Unfriendly

   Unfriendly means the opposite of Friendly. Shy is often guessed instead, because a shy person can still be friendly underneath, just quiet at first.

SOF IEO Class 3 syllabus

As published by SOF for Class 3: 4 sections, 27 topics. Reproduced as printed, so what you read here is what the paper is set from.

Compiled from sofolympiadtrainer.com. Always confirm against the official site before an exam.

Questions parents ask about IEO Class 3

What is the SOF IEO syllabus for Class 3?

The Class 3 paper has 4 sections: Word & Structure Knowledge, Reading, Spoken & Written Expression, Achievers. Topics include Collocations, Spellings, Words related to Animals, Clothes, Professions etc, Synonyms, Antonyms, Analogies, Nouns, Pronouns. The full list of 27 topics, as SOF publishes it, is on this page.

How many questions are in the Class 3 IEO paper?

35 questions for 40 marks, in 60 minutes. Word & Structure Knowledge: 15 questions of 1 mark each; Reading: 10 questions of 1 mark each; Spoken & Written Expression: 5 questions of 1 mark each; Achievers Section: 5 questions of 2 marks each. There is no negative marking.

When is the SOF IEO exam for Class 3 in 2026-27?

Level 1 is held in Sep-Nov and Level 2 in Feb. Each school picks its own exam day inside that window and tells its students, so the date for your child comes from the school. Confirm it on the official SOF site before the exam.

Who goes to IEO Level 2 from Class 3?

IEO has a second level for Class 3 and above. SOF's rule for who qualifies from Level 1: Top 5% class-wise; OR zone top 25; OR school topper.

Where can a Class 3 child practise IEO questions for free?

On PrepMojo. Every child gets 10 practice questions a day free, forever, with no card needed, and every answer comes with an explanation. It works in the app on iPhone and Android and in any web browser. Till 30 Nov 2026, every child has PrepMojo Plus at no cost as part of our Navratri and Diwali Offer.