CREST Science Olympiad Class 5 Previous Year Paper

Want to help your child do well in the Class 5 Science Olympiad? One of the most effective ways is to practise with previous year question papers. These papers are not just about answering questions-they help children understand the exam pattern, revise important topics, and build confidence.

Why Practise with Previous Year Papers?

• They include questions from key topics like Animals, Human Body and Health, Plants, Natural Resources etc.
• They train students to manage time efficiently while solving challenging questions.
• Each paper comes with an answer key to help track progress and learn from mistakes.

Download the Science Olympiad Previous Year Paper for Class 5 (PDF) and help your child approach the exam with better preparation and less stress.

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Syllabus:

Section 1: Animals, Human Body and Health, Plants, Natural Resources, Pollution and Calamities, Earth and Universe, Matter, Force, Work and Energy.

Achievers Section: Higher Order Thinking Questions - Syllabus as per Section 1

Sample Paper Previous Year Paper Marking Scheme Free Study Material

Previous Year Questions

Q.1

Q.2

Q.3

Q.4

Q.5

Q.6

Q.7

Q.8

Q.9

Q.10

Q.1	The diagram below shows the blood flow between the heart, the lungs and the rest of the body. Which one of the following best describe the blood at A and B?
	a) A-Rich in oxygen, poor in carbon dioxide B-Rich in carbon dioxide and oxygen		b) A-Rich in carbon dioxide, poor in oxygen B-Poor in carbon dioxide and oxygen
	c) A-Rich in oxygen, poor in carbon dioxide B-Rich in carbon dioxide, poor in oxygen		d) A-Rich in carbon dioxide, poor in oxygen B-Rich in carbon dioxide and oxygen

Q.2	When a volcano erupts, a lot of ash can enter the air. The ash in the air may block sunlight for a long time. Which organisms would most likely be affected first when this happens?
	a) Parasite		b) Consumer
	c) Decomposer		d) Producer

Q.3	Which of the following activities will help to reuse non-biodegradable wastes? 1. Use cloth napkins instead of disposable napkins. 2. Old worn-out clothes made into cushion covers. 3. Old mixer grinder given to maidservant for home purpose. 4. Old newspapers used for packaging.
	a) 1 and 2		b) 1 and 4
	c) 3 and 4		d) 2 and 3

Q.4	Which of the following pairs of energy are non-renewable sources of energy? 1. Solar power 2. Wind 3. Petroleum 4. Water 5. Natural gas
	a) 3 and 5		b) 1 and 2
	c) 4 and 5		d) 1 and 4

Q.5	Select the activity which is different from the other three based on the types of force involved. P - A table pushed along a floor Q - A vehicle stops when brakes are applied R - A stone thrown high up in the air, always comes down S - Drilling a nail into the wall
	a) P		b) Q
	c) S		d) R

Q.6	Which of the following actions will help to reduce pollution? 1. Using sewers and treatment plants to remove human waste. 2. Restricting smoking in public to designated areas. 3. Spraying pesticides on plants to kill pests.
	a) Only 2		b) Only 3
	c) Both 1 and 2		d) 1, 2 and 3

Q.7	Choose the option that correctly represents the energy changes taking place in the following cases: 1. Television 2. Electric blender 3. Toy car moving down a ramp
	a) 1: Electrical energy into light energy, sound energy 2: Electrical energy into kinetic energy, sound energy 3: Potential energy to kinetic energy		b) 1: Potential energy into electrical energy, sound energy and heat energy 2: Kinetic energy into electrical energy, heat energy and sound energy 3: Potential energy to heat energy and sound energy
	c) 1: Sound energy into electrical energy, sound energy and heat energy 2: Potential energy into electrical energy, heat energy and sound energy 3: Potential energy to heat energy and sound energy		d) 1: Sound energy into mechanical energy, potential energy and heat energy 2: Potential energy into electrical energy, heat energy and light energy 3: Mechanical energy to heat energy and sound energy

Q.8	Observe the figure given below carefully. Identify A, B and D, which are required for photosynthesis:
	a) A - Sunlight B - Carbon dioxide D - Oxygen		b) A - Water B - Carbon dioxide D - Sunlight
	c) A - Sunlight B - Oxygen D - Minerals		d) A - Sunlight B - Oxygen D - Soil

Q.9	Winona felt cold when she got out of the swimming pool. Why?
	a) The water on her body evaporated into the surrounding air.		b) The water in the swimming pool gained heat from her body.
	c) The water vapour from the surrounding air condensed onto her body.		d) The water from the swimming pool evaporated into the surrounding air.

Q.10	Which of the following are precautions that one should take when an earthquake strikes? 1. If indoors, pick a safe place where things will not fall on you, away from windows, bookcases, or tall, heavy furniture. 2. If outdoors, move away from buildings, trees, streetlights, and power lines. 3. If you are in a vehicle, pull over to a clear location, stop and stay there until the shaking stops.
	a) Only 1		b) Only 2
	c) Only 1 and 2		d) 1, 2 and 3

Your Score: 0/10

Additional Preparation Resources

Students can also refer to the following resources to level up their CREST Science Olympiad (CSO) exam preparation for class 5 -

1. CREST Science Worksheets Package for class 5 - It is a package of 5 worksheets. The worksheets are in the same pattern as the previous year paper. Hence, very useful for preparation. Existing users can purchase additional practice worksheets by following these steps: Login at https://www.crestolympiads.com/login -> Dashboard -> Additional Practice -> Buy & new users can visit https://www.crestolympiads.com/registration
2. CREST Science Olympiad book for class 5 - The book covers topic-wise reading material, chapter-wise practice questions with answer key & contains the previous year paper. The book is available in both physical and pdf formats. Proceed now to purchase the Olympiad book. Also, students can view & download the first chapter of the Science Olympiad book for class 5 for free.

Note: Don’t forget to download the CREST Science Olympiad past year paper pdf for class 5.