SOF ICSO for Class 3

ICSO 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-Jan

Levels

1 (Single Level)

Classes eligible

1-10

It is held in Sep-Jan. 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: Section priority order applies.

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 · Computers

   Amit tries to save a long film onto his computer, and a message tells him there is no room left to keep anything more. Everything else works normally. Which part of the computer is most likely causing this?

   1. A.Hard disk
   2. B.Monitor
   3. C.Printer
   4. D.Keyboard
   Show answer

   Answer: A. Hard disk

   The question says more about what is still going right than about what has gone wrong, and every one of those details crosses a part off the list. The one thing left unexplained is there being nowhere left to keep a file, and the hard disk is the only part on the list that could bring it about.

2. Question 2 · Computers

   Which one of these is NOT a real kind of printer?

   1. A.Inkjet printer
   2. B.Mirror printer
   3. C.Dot matrix printer
   4. D.Laser printer
   Show answer

   Answer: B. Mirror printer

   Mirror printer is not a real kind of printer; no such thing exists. The other three are real. Inkjet printer: it sprays fine drops of ink on to the paper; Laser printer: it fuses powdered toner on to the paper with heat; Dot matrix printer: it strikes pins through an inked ribbon.

3. Question 3 · Computers

   In MS Word, which of these is carried out by pressing Ctrl + Y on the keyboard?

   1. A.Save
   2. B.Make the text bold
   3. C.Redo
   4. D.Find a word in the document
   Show answer

   Answer: C. Redo

   Ctrl + Y carries out redo. This one has to be learnt on its own, because the key carries no letter from the command at all. The wrong options are all real commands with real shortcuts of their own, so the question is settled by which keys go with which command, not by which commands exist.

4. Question 4 · Computers

   Statement 1: MS-Paint is used for drawing and colouring pictures. Statement 2: A picture made in MS-Paint can be saved and opened again later. Which of these is true?

   1. A.Both statements are correct
   2. B.Neither statement is correct
   3. C.Only statement 2 is correct
   4. D.Only statement 1 is correct
   Show answer

   Answer: A. Both statements are correct

   There is nothing wrong with either statement, so both are correct.

5. Question 5 · Computers

   What does the short form CD stand for?

   1. A.Compact Disc
   2. B.Central Disc
   3. C.Computer Disc
   4. D.Copy Drive
   Show answer

   Answer: A. Compact Disc

   CD stands for Compact Disc. Every wrong option swaps in a word that sounds as if it belongs, so the letters alone cannot settle it; the real phrase has to be known.

6. Question 6 · Computers

   In an office program, which feature makes chosen text look heavier?

   1. A.Bold
   2. B.Underline
   3. C.Spelling and grammar check
   4. D.Italic
   Show answer

   Answer: A. Bold

   Bold makes chosen text look heavier. Not Italic: the buttons sit side by side and both emphasise text.

7. Question 7 · Logical Reasoning

   What is Arjun's father's brother's son to Arjun?

   1. A.uncle
   2. B.nephew
   3. C.brother
   4. D.cousin
   Show answer

   Answer: D. cousin

   Your father's brother is your uncle, and your uncle's son is your cousin.

8. Question 8 · Logical Reasoning

   How is Sara's daughter's daughter related to Sara?

   1. A.daughter
   2. B.granddaughter
   3. C.grandmother
   4. D.grandson
   Show answer

   Answer: B. granddaughter

   Take the chain one step at a time. Sara's daughter is one step down the family, and that person's daughter is another step down. So that person is Sara's granddaughter.

SOF ICSO Class 3 syllabus

As published by SOF for Class 3: 5 sections, 29 topics. Reproduced as printed, so what you read here is what the paper is set from.

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

Questions parents ask about ICSO Class 3

What is the SOF ICSO syllabus for Class 3?

The Class 3 paper has 5 sections: Logical Reasoning, Computer Science, Achievers, AI, Robotics and Information Technology, IT & Achievers. Topics include Patterns, Analogy and Classification, Alphabet Test, Coding-Decoding, Ranking Test, Grouping of Figures and Figure Matrix, Mirror Images, Geometrical Shapes, Embedded Figures, Possible Combinations. The full list of 29 topics, as SOF publishes it, is on this page.

How many questions are in the Class 3 ICSO paper?

35 questions for 40 marks, in 60 minutes. Logical Reasoning: 5 questions of 1 mark each; Computer Science: 20 questions of 1 mark each; Information Technology: 5 questions of 1 mark each; Achievers Section: 5 questions of 2 marks each. There is no negative marking.

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

It is held in Sep-Jan. 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.

Where can a Class 3 child practise ICSO 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.