Updated for 2026–27: This page provides a free SCO Olympiad Class 5 Science sample paper PDF with practice questions and an answer key. The existing URL is being preserved because it already has Google search history, while the visible content now correctly identifies the resource as SCO Olympiad.

This page is intentionally different from our Class 5 previous-year-paper page. A sample paper is best used to practise question style, speed and topic coverage, while a previous-year paper is useful for reviewing an older real practice set. Students can use both without confusing their purpose.

Current curriculum note: NCERT’s newer Grade 5 transition material places environmental and science learning within the competency-based The World Around Us framework. This sample paper remains useful for Olympiad practice, but students should also follow their current school books for the latest classroom sequence.

SCO Olympiad Class 5 Science Sample Paper PDF – Free Download

Current SCO Class 5 Science Resources for 2026

The archived PDF above is useful for additional practice, but final preparation should follow the current Class 5 Science resource path published by School Connect Olympiad.

• Current SCO Class 5 Science Olympiad page — subject hub, chapters, dates and downloads.
• Class 5 Science Olympiad Syllabus (2026) — start here to understand the learning scope.
• Class 5 Science Sample Paper 1 (2026) — current timed practice.
• Class 5 Science Sample Paper Answer Key (2026) — use only after attempting the paper.
• Class 5 Science Previous Year Paper (2026) — use after syllabus and sample-paper revision.

Recommended order: current syllabus → 2026 sample paper → answer-key review → archived paper on this page → 2026 previous-year paper → error analysis and revision.

How to Use This Class 5 Science Olympiad Sample Paper

• Attempt the questions once without checking the answer key.
• Use a timer to practise both accuracy and speed.
• Mark guessed questions separately from clearly wrong answers.
• Revise weak topics such as the nervous system, nutrition, diseases, shadows, the Moon, simple machines and electricity.
• Retry difficult questions after revision rather than memorising option letters.

Important: this is a practice resource. Exam-day instructions, section names and response-sheet rules can change, so students should follow the current SCO Olympiad admit card and question paper.

1. Ankur was in a hurry to go to the office. He went to iron his clothes and accidentally touched the hot iron. He immediately removed his hand. This was a reflex action. Which part of the nervous system helped him?

1. Cerebrum 
2. Cerebellum
3. Medulla 
4. Spinal cord

2. Write (T) for true and (F) for false, and then choose the correct option.

1. Papaya is a great source of vitamin B.
2. Milk and milk products are good sources of calcium.
3. Eggs are rich in iodine.
4. Potatoes are rich in carbohydrates.

1. TFFT
2. TTFF
3. FTFT
4. TFTF

3. Fill in ‘x’, ‘y’ and ‘z’ in the following flowchart, and then choose the correct option.

1. X- malaria, y- measles, z- typhoid
2. X- polio, y- pneumonia, z- amoebic dysentery
3. X- tuberculosis, y- influenza, z- malaria
4. X- malaria, y- polio, z- typhoid

4. Select the incorrect statement.

1. Dengue is a disease caused by mosquitoes.
2. Diseases like cough, cold, influenza spread through air. 
3. Vaccination helps to acquire immunity against all diseases.
4. Huge quantities of water can be purified using chlorination.

5. Shadows are:

1. Always smaller than the opaque body
2. Always bigger than the opaque body
3. Remains the same size of the opaque body
4. Can be smaller or bigger than the opaque body

6. How many days does it take the moon to complete all eight phases?

1. 15 days
2. 21.5 days
3. 29.5 days
4. 30 days

7. Which gas is most commonly found in biogas plants?

1. Carbon dioxide
2. Water vapour
3. Oxygen
4. Methane

8. Which type of simple machine is shown in the image?

1. screw
2. second class lever
3. Wheel and axle
4. third class lever

9. What does the following symbol denote in an electric circuit?

1. cell
2. bulb
3. motor
4. wire

10. Identify the method of separation shown in the image?

1. handpicking
2. threshing
3. winnowing
4. all of these

Answer Keys:

Ques. 1	(d)	Ques. 6	(c)
Ques. 2	(c)	Ques. 7	(d)
Ques. 3	(c)	Ques. 8	(b)
Ques. 4	(c)	Ques. 9	(a)
Ques. 5	(d)	Ques. 10	(c)

Answer Explanations and Concept Review

1. Reflex action — (d): the spinal cord can coordinate a rapid withdrawal reflex before the brain consciously processes the pain.
2. Nutrition statements — (c): milk and milk products are good calcium sources and potatoes are rich in carbohydrates. The papaya/vitamin-B and egg/iodine statements in this archived item are too broad, so use the current syllabus and nutrition references for precise nutrient learning.
3. Disease classification — archived key (c): this is a flowchart-dependent question. Students should identify whether each disease is bacterial, viral, protozoan or otherwise transmitted rather than memorising the option letter.
4. Vaccination — (c): vaccines help build immunity against specific diseases; no single vaccination protects against every disease.
5. Shadows — (d): shadow size changes with the relative positions of the light source, object and screen, so it can be larger or smaller than the object.
6. Moon phases — (c): the lunar phase cycle is about 29.5 days from one new moon to the next.
7. Biogas — (d): methane is the main combustible component of biogas.
8. Simple machine — archived key (b): use the image to identify the positions of effort, load and fulcrum. In a second-class lever, the load lies between the fulcrum and the effort.
9. Electric circuit symbol — (a): the shown symbol represents a cell, which provides electrical energy to a simple circuit.
10. Separation method — (c): winnowing uses moving air to separate lighter husk/chaff from heavier grains.

Fresh Class 5 Science Mini Challenge

1. Which organ controls most voluntary actions and thinking?
   A. Spinal cord   B. Cerebrum   C. Stomach   D. Kidney
2. Which process changes liquid water into water vapour?
   A. Condensation   B. Freezing   C. Evaporation   D. Melting
3. Which planet is famous for its large ring system?
   A. Mars   B. Venus   C. Saturn   D. Mercury
4. Which is a renewable source of energy?
   A. Coal   B. Petroleum   C. Solar energy   D. Natural gas
5. Which simple machine is used in a flagpole?
   A. Pulley   B. Wedge   C. Screw   D. Wheelbarrow

Answers: 1-B, 2-C, 3-C, 4-C, 5-A. Ask the student to explain the science behind each answer rather than only checking the letter.

4-Week Class 5 Science Olympiad Practice Plan

Week	Focus	Goal
1	Read the current syllabus and revise human body, health, plants, food and digestion.	Build strong core concepts before timed practice.
2	Revise water, air, fuels, natural resources, simple machines, matter and Earth/space themes.	Connect textbook science with real-world examples.
3	Attempt the current 2026 SCO sample paper with a timer and check the answer key afterwards.	Measure accuracy, speed and weak topics.
4	Attempt this archived paper and then the 2026 previous-year paper.	Compare performance and revise repeated mistakes.

Parent and Teacher Checklist

• Ask the student to explain why each option is right or wrong.
• Separate science-concept mistakes from reading or diagram mistakes.
• Use short experiments and everyday examples where safe.
• Do not treat an archived paper as the complete current syllabus.
• Review two weak topics before attempting the next full paper.
• Use the current answer key only after an honest timed attempt.

Current SCO Science Olympiad Opportunity

As of October 8, 2026, the current Class 5 Science page lists the next Winter 2027 exam slot on October 10, 2026. Students should confirm the live subject/date combination before registration.

View current SCO exam dates  |  Register for SCO Olympiad

Class 5 Science Olympiad Sample Paper FAQs

Is this PDF from SCO Olympiad?

Yes. The downloadable PDF and practice questions on this page are SCO Olympiad Class 5 Science material.

Can I download the Class 5 Science Olympiad sample paper for free?

Yes. The embedded PDF can be opened or downloaded free for revision and timed practice.

What is the difference between this sample paper and the Class 5 previous-year paper?

This page is focused on a sample paper for practice. Students who want an older previous-year practice set can use our separate Class 5 Science Olympiad previous-year paper. Keeping the two purposes separate makes preparation clearer.

Does this sample paper exactly match the current Class 5 school syllabus?

Not necessarily. Curriculum sequencing changes over time, so use the paper for Olympiad-style reasoning and concept practice while following current school material for the latest classroom sequence.

Related Science Olympiad Practice Resources

• Class 5 Science Olympiad previous-year paper
• Class 5 Science Olympiad preparation guide
• Class-wise Olympiad previous papers