Class-wise Olympiad Papers & Practice

Class-wise Olympiad Papers and Practice for Classes 1–12

Looking for Olympiad previous-year papers, sample questions or worked answers for your class? A good starting point is to choose your grade and subject, check the important topics, and practise with explanations that show how to solve each question.

Explore Maths, Science and English Olympiad resources, a practical revision timetable and 20 free practice questions with worked answers below. Students can use the questions independently, while parents and teachers can use the learning-stage sections to plan short practice sessions.

Choose a subject in the School Connect Olympiad subject directory, or use the class-wise learning links in the next section to start practising.

Students exploring Olympiad learning subjects and practice resources — Maths, Science and English Olympiad learning resources

Choose Your Olympiad Subject

Explore the preparation pathway that matches what you enjoy studying. The class pages and subject hubs bring together syllabi, explanations, questions and paper resources to help you practise at the right level.

Subject	Start here	Focus on
Mathematics	Maths Olympiad resources for Classes 1–12	Numbers, shapes, algebra, reasoning and worked problems
Science	Science Olympiad class-wise study guide	Life science, physical science, experiments and scientific reasoning
English	International English Olympiad study resources	Vocabulary, grammar, comprehension and language use
Mental ability and reasoning	Explore available Olympiad subjects	Sequences, patterns, comparisons and logical thinking

Find the Right Class-wise Practice Level

Classes	Learning goals	Practice approach
1–3	Basic numbers, everyday science, simple sentences and patterns	Short problems, pictures and discussions
4–6	Fractions, measurement, natural processes, vocabulary and logic	Show calculations and explain observations
7–9	Algebra, geometry, scientific evidence and grammar	Combine concepts in multi-step questions
10–12	Functions, advanced science, language accuracy and reasoning	Work systematically and justify each answer

How to Use Question Papers and Worked Examples

Choose the correct grade and subject: read the current SCO subject guide to find the most useful topics.
Try a manageable set: solve a few questions independently and write down your method.
Study each explanation: compare your approach with the worked answer and identify a better method where needed.
Strengthen difficult topics: practise another problem on the same idea after reviewing a mistake.
Build confidence with a full paper: use an available question paper to practise timing, reading and checking your work.

If you prefer a downloadable paper, visit a subject page and choose an available paper for your class. If you prefer reading answers immediately, choose a worked-question guide. Both can help students build understanding.

20 Free Olympiad Practice Questions with Worked Answers

Use these short Maths, Science, English and reasoning challenges as a starting point. Choose the group closest to your class, solve each question, then read the explanation to learn the method.

Classes 1–3: build strong foundations

Question 1 — Maths. What is 27 + 18?
A. 45 | B. 43 | C. 35 | D. 55
Answer: A. 45. Add 27+10=37, then 8 more: 45.
Question 2 — Science. Which part of most green plants absorbs sunlight for making food?
A. Roots | B. Leaves | C. Seeds | D. Bark
Answer: B. Leaves. Leaves contain chlorophyll that captures light energy for photosynthesis.
Question 3 — English. Choose the sentence with correct grammar.
A. The children is reading. | B. The children am reading. | C. The children are reading. | D. The children be reading.
Answer: C. The children are reading.. The plural subject ‘children’ takes ‘are’ in the present continuous tense.
Question 4 — Reasoning. Find the next number: 2, 4, 8, 16, __.
A. 20 | B. 24 | C. 30 | D. 32
Answer: D. 32. Each term doubles, so 16×2=32.
Question 5 — Maths. A rectangle is 5 cm long and 3 cm wide. What is its perimeter?
A. 16 cm | B. 15 cm | C. 8 cm | D. 30 cm
Answer: A. 16 cm. Perimeter is twice the sum of length and width: 2×(5+3)=16 cm.

Classes 4–6: deepen understanding

Question 6 — Maths. Find 2/3 + 1/6.
A. 3/9 | B. 5/6 | C. 1/2 | D. 1
Answer: B. 5/6. Convert 2/3 to 4/6, then add 1/6 to get 5/6.
Question 7 — Science. What is the change of liquid water to water vapour at its surface called?
A. Condensation | B. Freezing | C. Evaporation | D. Deposition
Answer: C. Evaporation. Evaporation happens when liquid water changes to vapour at the surface.
Question 8 — English. Which word is closest in meaning to ‘scarce’?
A. Plentiful | B. Careless | C. Loud | D. Limited
Answer: D. Limited. Something scarce is in short supply, so ‘limited’ is closest.
Question 9 — Reasoning. What comes next in the letter pattern A, C, F, J, __?
A. O | B. N | C. M | D. P
Answer: A. O. The positions increase by 2, then 3, then 4; the next increase is 5, from J to O.
Question 10 — Maths. What is 15% of 240?
A. 24 | B. 36 | C. 30 | D. 40
Answer: B. 36. Ten percent is 24 and five percent is 12, so 15% is 36.

Classes 7–9: apply multiple skills

Question 11 — Maths. Solve 4x − 3 = 17.
A. 4 | B. 6 | C. 5 | D. 7
Answer: C. 5. Add 3 to both sides to get 4x=20, then divide by 4: x=5.
Question 12 — Science. An aqueous solution has pH 4. How is it usually described?
A. Distilled | B. Neutral | C. Basic | D. Acidic
Answer: D. Acidic. At ordinary classroom conditions, a pH below 7 indicates an acidic solution.
Question 13 — English. Choose the grammatically correct sentence.
A. Neither of the answers is correct. | B. Neither of the answers are correct. | C. Neither of the answers were correct. | D. Neither of the answers have correct.
Answer: A. Neither of the answers is correct.. In formal written English, ‘neither’ is treated as singular here, so ‘is’ agrees with it.
Question 14 — Reasoning. Which number comes next: 1, 4, 9, 16, __?
A. 20 | B. 25 | C. 24 | D. 36
Answer: B. 25. These are consecutive perfect squares: 1², 2², 3², 4², then 5²=25.
Question 15 — Maths. A right triangle has shorter sides of 5 cm and 12 cm. Find the hypotenuse.
A. 11 cm | B. 12 cm | C. 13 cm | D. 17 cm
Answer: C. 13 cm. Use Pythagoras: √(5²+12²)=√169=13 cm.

Classes 10–12: extend reasoning

Question 16 — Maths. What are the roots of x² − 5x + 6 = 0?
A. 1 and 6 | B. 3 and 5 | C. −2 and −3 | D. 2 and 3
Answer: D. 2 and 3. Factor as (x−2)(x−3)=0; the roots are 2 and 3.
Question 17 — Science. A net force acts on a 3 kg object, producing acceleration 4 m/s². Find the force.
A. 12 N | B. 9 N | C. 7 N | D. 15 N
Answer: A. 12 N. Newton’s second law gives F=ma=3×4=12 newtons.
Question 18 — English. Choose the correct conditional sentence.
A. Had I know, I would have called. | B. Had I known, I would have called. | C. Had I knew, I would have called. | D. Had I knowing, I would have called.
Answer: B. Had I known, I would have called.. ‘Had I known’ is an inverted third conditional, equivalent to ‘If I had known’.
Question 19 — Reasoning. A fair six-sided die is rolled. What is the probability of an even number?
A. 1/6 | B. 1/3 | C. 1/2 | D. 2/3
Answer: C. 1/2. Three of the six equally likely outcomes—2, 4 and 6—are even, so 3/6=1/2.
Question 20 — Maths. For f(x)=x³, what is f'(2)?
A. 6 | B. 8 | C. 16 | D. 12
Answer: D. 12. Differentiate to get f'(x)=3x²; substituting x=2 gives 3×4=12.

Seven-Day Olympiad Practice Plan

Day	What to do	What it develops
1	Read the syllabus and choose two familiar topics	Clear preparation goals
2	Practise Maths or reasoning questions	Accurate calculations and patterns
3	Study Science topics and explain observations	Scientific understanding
4	Practise English comprehension, grammar or vocabulary	Careful reading and language use
5	Mix question types and explain answers aloud	Flexible thinking
6	Attempt a short timed practice set and check answers	Focus and sensible pacing
7	Review mistakes and plan the next week’s topics	Long-term improvement

Useful Olympiad Preparation Resources

Students preparing for Maths can explore Maths Olympiad Level 1 preparation and Level 2 problem-solving practice. For Science, use the Science Olympiad subject page to choose class topics. English learners can begin with the English Olympiad syllabus overview.

Check the Olympiad exam calendar and registration information when you are ready to plan your participation.

Frequently Asked Questions

Where can I find Olympiad papers for my class?

Begin with the Maths, Science or English links above, then choose your class. Each subject page provides learning resources and links to the question papers or practice activities offered for that grade.

Can I practise Olympiad questions online?

Yes. This page has 20 questions with answers, and the Maths class-wise guide links to further solved practice questions and downloadable papers.

Which subject should a Class 1 or Class 2 student start with?

Choose a subject that interests the child. Maths number patterns, short English sentences and simple Science observations are approachable starting points.

What is the best way to use an Olympiad answer key?

Try the question before checking the answer. Then review the explanation, identify any mistake and practise another example using the same concept.

How can teachers use class-wise Olympiad resources?

Teachers can choose a grade-appropriate topic, discuss different solutions and use student answers to decide which concepts need further practice.

Is it better to practise faster or more carefully?

Begin by understanding the method and solving accurately. Add timed practice after you can explain the steps confidently.

Are practice questions and exam registration the same?

You can use the learning questions on this page directly. For participation in an Olympiad examination, visit the official SCO registration page for available sessions, class options and fees.