SOF ISO Sample Paper 2026 Class 1
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SOF ISO Sample Paper 2026 Class 1 is available here for free download. Published by SOF for International Science Olympiad, this sample paper can be viewed online or downloaded as a PDF (3 pages). Candidates preparing for International Science Olympiad can use SOF ISO Sample Paper 2026 Class 1 to understand the exam pattern, the type of questions asked, and the overall difficulty level.
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SOF ISO Sample Paper 2026 Class 1 – Text
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1
SAMPLE PAPER
2025-26 SOF NATIONAL
SCIENCE OLYMPIAD
Total Questions : 35 Time : 1 hr.
PATTERN & MARKING SCHEME
Section (1) Logical Reasoning (2) Science (3) Achievers Section
No. of Questions 5 25 5
Marks per Ques. 1 1 2
SYLLABUS
Section – 1 : Patterns, Odd One Out, Measuring Units, Geometrical Shapes, Spatial Understanding,
Grouping of Figures, Analogy, Ranking Test, Problems based on Figures.
Section – 2 : Living and Non-living Things, Plants, Animals, Human Beings and Their Needs, Good
Habits and Safety Rules, Air and Water, Weather and The Sky.
Section – 3 : Higher Order Thinking Questions - Syllabus as per Section – 2.
LOGICAL REASONING
1. There are _____________ air coolers in each 4 equal groups of air coolers.
(A) 5 (B) 4 (C) 3 (D) 6
2. There is a certain relationship between the pair of figures on the either
side of : :. Identify the relationship of the given pair and find the missing
figure.
: :: : ?
(A) (B)
(C) (D)
3. Laptop __________ is seventh from the left end in the given arrangement.
S T U V W X Y Z
(Left)
(A) T (B) U (C) Y (D) X
Sample Paper | Class-1 | 1
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4. Select the odd one out on the basis of natural and man-made things.
(A) (B)
(C) (D)
5. Select the odd one out on the basis of number of legs they have.
(A) Butterfly (B) Spider
(C) Mosquito (D) Ladybug
6. Which part of the mango plant gives rise to the mango fruit?
(A) Root (B) Branch
(C) Flower (D) Leaf
7. Which of the following food items can be placed in the same food group
as egg?
(A) Ghee (B) Cheese
(C) Orange (D) Butter
8. Which of the following harvest festivals is celebrated in Tamil Nadu?
(A) Onam (B) Pongal
(C) Baisakhi (D) Bihu
ACHIEVERS SECTION
9. How many (a) plant eating and (b) flesh-eating animals are hidden in
the given word grid?
O X S V L D L
P S N R M E Q
L E A G L E Y
I N K O Q R Z
O U E T W X S
N O A T V Y W
R M P U T Z K
(A) (a) – 5, (b) – 1 (B) (a) – 4, (b) – 2
(C) (a) – 2, (b) – 3 (D) (a) – 2, (b) – 2
2 | Sample Paper | Class-1
Page 3
B C E
A
(A) A source of salty water
(B) An underground source of water
(C) A gaseous form of water
(D) A man-made container used for storing water
ANSWER KEY
1. (B) 2. (B) 3. (C) 4. (B) 5. (B) 6. (C) 7. (B) 8. (B) 9. (C) 10. (C)
Sample Paper | Class-1 | 3