CREST Science Olympiad Class 3 Previous Year Paper

Getting your child ready for the Class 3 Science Olympiad? A great way to begin is by practising with previous year question papers. These papers are more than just practice-they help your child understand the types of questions asked and boost their confidence.

How Previous Year Papers Help

• They include questions from important topics like Plants and Animals, Birds, Food, Housing and Clothing etc.
• They improve your child's ability to think critically and answer questions within a time limit.
• Answer keys are provided to help spot mistakes and learn from them easily.

Download the Science Olympiad Previous Year Paper for Class 3 (PDF) and help your child practise smarter and feel more confident before the exam.

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Syllabus:

Section 1: Plants and Animals, Birds, Food, Housing and Clothing, Transport and Communication, Human Body, Earth and Universe, Matter and Materials, Light, Sound and Force, Our Environment.

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

Sample Paper Previous Year Paper Marking Scheme Free Study Material

Previous Year Questions

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Q.4

Q.5

Q.6

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Q.10

Q.1	Rainwater harvesting is one way of increasing the availability of water by collecting the rainwater and storing it for later use. Which of the following is/are the benefits of rainwater harvesting?
	a) It is environment-friendly.		b) It improves the quality of groundwater.
	c) It prevents soil erosion and flooding, especially in urban areas.		d) All of the above

Q.2	The picture below shows the first boy looking through a straight hose at the candle and the second boy trying to look through a bent hose at the candle. The second boy was unable to see the candle burning through the bent hose. What does this experiment prove?
	a) Light does not travel in a straight line.		b) Light travels in a straight line.
	c) We should always look through a bent hose to see light.		d) Light travels in all directions from its source.

Q.3	What kind of fibres are obtained from the animals shown in the picture below?
	a) 1-Rayon, 2-Cotton		b) 1-Cotton, 2-Silk
	c) 1-Wool, 2-Silk		d) 1-Jute, 2-Nylon

Q.4	Given below are some features of plants found in a particular habitat: 1. The stems are thick and fleshy which store water and food. 2. The leaves are reduced to thorns or spines to avoid loss of water. 3. They have long roots that grow deep into the soil to get underground water. Which of these is the habitat of the given plant?
	a) Mountain		b) Grasslands
	c) Desert		d) Pond

Q.5	Danny went jogging one morning. He started breathing faster and his heart beat faster. Which systems in his body were responsible for the changes that he experienced?
	a) Skeletal and muscular systems		b) Circulatory and respiratory systems
	c) Respiratory and muscular systems		d) Circulatory and skeletal systems

Q.6	Given below are two groups of animals: On what basis have they been grouped?
	a) Group X: Animals that migrate. Group Y: Animals that hibernate.		b) Group X: Animals that eat only plants. Group Y: Animals that eat both plants and flesh of other animals.
	c) Group X: Animals found in desert regions. Group Y: Animals that live in water.		d) Group X: Animals that spend most of their time on trees. Group Y: Animals which live both on land and in water.

Q.7	Minerals are also called protective foods and helps us to fight diseases. Which of the following food item is a very good source of iron?
	a)		b)
	c)		d)

Q.8	The picture below shows a damaged tyre and damaged sole of shoes. What is the reason behind such damage in the tyre and shoes?
	a) Frictional force		b) Magnetic force
	c) Gravitational force		d) Muscular force

Q.9	When a shopping cart is pushed, the cart rolls forward.  Four students made the following statements about the forces acting on the cart: Richard: The forces acting on the cart are balanced. David: The forces acting on the cart are unbalanced. George: No force is acting on the cart. Ana: Both muscular and electric forces act on the cart. Which of them made the correct statement?
	a) Only Richard		b) Only George
	c) Only Ana		d) Only David

Q.10	Look at the two food items shown below and identify the main nutrient present in them:
	a) Fats		b) Carbohydrates
	c) Minerals		d) Protein

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Additional Preparation Resources

Students can also refer to the following resources to level up their CREST Science Olympiad (CSO) exam preparation for class 3 -

1. CREST Science Worksheets Package for class 3 - 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 3 - 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 3 for free.

Note: Don’t forget to download the CREST Science Olympiad past year paper pdf for class 3.