SOF ICSO for Class 4

ICSO Class 4 at a glance

Conducted by

Science Olympiad Foundation

Questions for Class 4

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 4

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 4 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

   Which one of these uses artificial intelligence?

   1. A.A torch that switches on with a button
   2. B.Traffic lights that change on a fixed timer
   3. C.An app that suggests videos you might like
   4. D.A washing machine running on a timer
   Show answer

   Answer: C. An app that suggests videos you might like

   An app that suggests videos you might like uses AI: it learns from what you and others have watched before. A torch that switches on with a button is often thought to use AI because it is an electronic gadget, but being electronic is not the same as being intelligent. Suggesting is a prediction, not a rule someone wrote out in advance.

2. Question 2 · Computers

   Which one of these is software?

   1. A.A pen drive
   2. B.A memory card
   3. C.A game you install
   4. D.A blank CD
   Show answer

   Answer: C. A game you install

   A game you install is software. A blank CD is often thought to be software because programs are sold on discs, but the disc you can hold is the hardware and the program stored on it is the software.

3. Question 3 · Computers

   Which one of these can hold the largest amount of data?

   1. A.Blu-ray disc
   2. B.CD
   3. C.DVD
   4. D.Floppy disk
   Show answer

   Answer: A. Blu-ray disc

   Written out, Floppy disk is about 1.44 MB; CD is about 700 MB; DVD is about 4.7 GB on a single layer; Blu-ray disc is about 25 GB on a single layer. In order that is Floppy disk < CD < DVD < Blu-ray disc.

4. Question 4 · Computers

   Which of these statements about a search engine are correct? (1) It has to be installed on the computer before it can be used. (2) It keeps a copy of every page on the web on your own computer. (3) It finds web pages that match the words you type in.

   1. A.All of (1), (2) and (3)
   2. B.(3) only
   3. C.(1) and (2) only
   4. D.(1) only
   Show answer

   Answer: B. (3) only

   Two of the three fail here, so counting on the answer to name a pair would go wrong. It is not true that it has to be installed on the computer before it can be used, which sinks statement (1), and not true that it keeps a copy of every page on the web on your own computer, which sinks statement (2). That leaves one standing, which makes the answer (3) only.

5. Question 5 · Computers

   Which of these are TRUE about a touch screen? (1) It can be used only with a mouse. (2) It works as an input device. (3) It works as an output device.

   1. A.Only (1)
   2. B.Both (2) and (3)
   3. C.All of (1), (2) and (3)
   4. D.Only (2)
   Show answer

   Answer: B. Both (2) and (3)

   Statement (1) is false: "It can be used only with a mouse" is not true of a touch screen. The other two are true, so the answer is both (2) and (3).

6. Question 6 · Computers

   In a robot, which part holds the other parts together in one frame?

   1. A.The wheels or legs
   2. B.The chassis
   3. C.The motor
   4. D.The memory
   Show answer

   Answer: B. The chassis

   The chassis holds the other parts together in one frame. Not the wheels or legs, which lets the robot move from place to place across the ground.

7. Question 7 · Logical Reasoning

   If doctor is called teacher, teacher is called farmer, farmer is called pilot and pilot is called doctor, then who grows our food?

   1. A.farmer
   2. B.pilot
   3. C.doctor
   4. D.teacher
   Show answer

   Answer: B. pilot

   Answer the question first, then translate. The true answer is farmer. But nothing here keeps its own name: farmer is called pilot, so pilot is what you say. Reading the swap the other way round - asking what is called farmer - answers a question nobody asked.

8. Question 8 · Logical Reasoning

   Each letter of the word ENVIRONMENT may be used only as often as it appears in it. Which of the following words CANNOT be formed from its letters?

   1. A.MENTOR
   2. B.INTERN
   3. C.INVENT
   4. D.MONITOR
   Show answer

   Answer: D. MONITOR

   Strike the letters of each option off ENVIRONMENT one at a time. The answer runs out at the letter O, which ENVIRONMENT does not supply often enough, while the other three can be built completely.

SOF ICSO Class 4 syllabus

As published by SOF for Class 4: 5 sections, 30 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 4

What is the SOF ICSO syllabus for Class 4?

The Class 4 paper has 5 sections: Logical Reasoning, Computer Science, Achievers, AI, Robotics and Information Technology, IT & Achievers. Topics include Patterns, Alphabet Test, Coding-Decoding, Ranking Test, Mirror Images, Geometrical Shapes and Solids, Embedded Figures, Direction Sense Test, Possible Combinations, Analogy and Classification. The full list of 30 topics, as SOF publishes it, is on this page.

How many questions are in the Class 4 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 4 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 4 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.