Updated for 2026–27: This page contains an archived SCO Olympiad Class 4 Science previous-year practice paper with 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 material as SCO Olympiad.

Use this paper to practise Class 4 science and environmental concepts, reasoning, diagrams and everyday applications. It is best used as a revision and diagnostic resource rather than as a substitute for the latest school syllabus or current exam-day instructions.

Current curriculum note: NCERT has introduced the Grade 4 curricular area The World Around Us under the newer competency-based framework. This means older Olympiad questions may use topic groupings or terminology that differ from current classroom books, even when the underlying concepts remain useful.

SCO Olympiad Class 4 Science Previous Year Paper PDF – Free Download

Class-4-ISODownload

The embedded PDF below is an SCO Olympiad practice resource. Students who want to continue with current preparation can also explore SCO International Science Olympiad resources after completing the paper.

How to Use This Class 4 Science Olympiad Paper

• Attempt the paper once without checking the answer key.
• Use a timer so you practise both speed and accuracy.
• Mark questions you guessed and review the concept afterwards.
• Group mistakes into themes such as food, plants, animals, the human body and the environment.
• Retry difficult questions after revision instead of memorising the answer choices.

Important: exam-day instructions can change over time. Students should follow the instructions printed on their current SCO Olympiad admit card and question paper rather than relying on old OMR directions from an archived paper.

1.Which food components are missing in the given flow chart?

1. Fats, water, sugar
2. Water, sugar, milk
3. Sugar, fish and milk 
4. Fats, water and minerals

2. Read the following statements. Then choose the correct option.

1. Food energy can be expressed in kilojoules (kJ) as well as kilocalories (kcal).
2. Dietary fibre in plant foods is mainly made of complex carbohydrates that our body does not fully digest.

1. Statement A is correct, statement B is incorrect
2. Statement B is correct, statement A is incorrect
3. Both the statements are correct
4. Both the statements are incorrect

3.Which is the correct group out of the following?

1. Vitamin A- Papaya- Night Blindness
2. Vitamin D- Sunlight- swollen gums
3. Fats- Salt- Goiter
4. Vitamin B-Spinach- Scurvy

4.What type of plant is shown in the image below?

1. Climbers 
2. Creepers
3. Insectivorous 
4. Aquatic 

5. Fill in the following crossword based on the hints and then choose the correct option.

		1
				4
2
	3				5	6

	Across		Up-Down
1	It is a very rich source of protein.	4	We must restrict eating too much of ….or else we will get fat.
2	Energy giving food	5	It does not have nutritional value but helps to remove undigested food from our body.
3	Excellent source of carbohydrate and iron	6	Putting…..in the food may keep us warm but eating it too much makes us bulky.

1. Egg, sugar, beetroot, tomato, fibre, butter
2. Fish, carbohydrate, beetroot, potato, roughage, oil
3. Milk, protein, beetroot, tomato, roughage, oil
4. Fish, carbohydrate, beetroot, tomato, fibre, oil

6.What are A and B in the following image?

1. A – Carbon dioxide, B – Oxygen
2. A – Oxygen, B – Carbon dioxide
3. A – Water vapour, B – Water
4. A – Water, B – Water vapour

7.Which out of the following is correct or incorrect?

1. Viviparous animals give live birth and do not lay eggs.
2. Whales and dolphins that live in water are mammals.

1. Statement A is correct, statement B is incorrect.
2. Statement A is incorrect, statement B is correct.
3. Both the statements are correct.
4. Both the statements are incorrect.

8.What is the function of the circulatory system?

1. It flows blood in the body.
2. It carries oxygen and nutrients to cells.
3. It takes away waste from the cells.
4. All of the above.

9.State whether the following sentences are true or false, then choose the correct option.

1. All plants prepare their food.
2. Pumpkin is a climber.

1. TT
2. FF
3. FT
4. TF

10.What conclusion can be drawn from the experiment given below?

1. Testing the leaf for presence of starch
2. To prove that water moves up through the stem
3. To prove that xylem is present in plants
4. To prove that leaf can prepare food

Answer Keys:

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

Quick Explanations for Selected Answers

• Q2: Food energy may be shown in kilojoules or kilocalories. Dietary fibre in plant foods is largely carbohydrate material that is not fully digested by the human body.
• Q3: Vitamin A deficiency can cause night blindness, and papaya is a source of beta-carotene that the body can convert to vitamin A.
• Q7: Viviparous animals give birth to live young, and whales and dolphins are mammals even though they live in water.
• Q8: The circulatory system transports oxygen and nutrients and also helps carry waste products away from cells, so “all of the above” is correct.
• Q9: Not all plants make their own food, and pumpkin is generally a creeper rather than a climber, so both statements are false.

Class 4 Science Olympiad FAQs

Is the PDF on this page from SCO Olympiad?

Yes. The downloadable PDF and the practice questions on this page are SCO Olympiad Class 4 Science material retained as a previous-year practice resource.

Can I download the Class 4 Science Olympiad paper for free?

Yes. The embedded SCO Olympiad PDF can be opened or downloaded from this page for revision and timed practice.

Does an older Olympiad paper always match the current Class 4 school syllabus?

No. Curriculum structures and terminology change over time. NCERT has introduced the Grade 4 curricular area The World Around Us under the newer framework, so students should use this older SCO paper for practice while also following their current school material.

How should a Class 4 student use a previous-year paper?

Attempt it without looking at the answers, use a timer, mark guessed questions, revise the weak concepts and then retry the difficult questions. The value is in learning from mistakes, not memorising answers.

Where can I continue with SCO Class 4 Science Olympiad preparation?

Students can continue with SCO International Science Olympiad resources after reviewing the mistakes from this paper.

Related Science Olympiad Practice Resources

• Class 3 Science Olympiad previous-year paper
• Class 5 Science Olympiad previous-year paper
• Class-wise Olympiad previous papers