CREST Science Olympiad Class 9 Previous Year Paper

Preparing for the Class 9 Science Olympiad can feel challenging, but using previous year question papers makes a big difference. These papers give students a solid understanding of how questions are framed and what topics to focus on, making revision more targeted.

How These Papers Help

• They cover crucial topics such as Motion, Force and Laws of Motion, Gravitation, Work and Energy, Sound etc.
• They improve time management, analytical thinking, and help students handle tricky questions more confidently.
• Answer keys are included to help students review and strengthen weak areas.

Download the Science Olympiad Previous Year Paper for Class 9 (PDF) to support focused revision and help your child step into the exam feeling well-prepared and motivated.

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Syllabus:

Section 1: Motion, Force and Laws of Motion, Gravitation, Work and Energy, Sound, Matter in Our Surroundings, Is Matter Around Us Pure, Atoms and Molecules, Structure of Atom, Cell - The Fundamental Unit of Life, Tissues, Diversity in Living Organisms, Why Do We Fall Ill, Natural Resources, Improvement in Food Resources.

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.2

Q.3

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Q.5

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Q.9

Q.10

Q.1	In the following question, an assertion and the reason are given. Choose the correct option: Assertion: The motion of a body moving in a circular path with constant speed is an example of constant acceleration. Reason: Acceleration varies due to change in direction.
	a) Both assertion and reason are true and reason is the correct explanation of assertion.		b) Both assertion and reason are true and reason is not the correct explanation of assertion.
	c) Assertion is true but reason is false.		d) Assertion is false but reason is true.

Q.2	Select the correct reason for the given statement: Algae and other submerged green plants often float in water during daytime and sink at night.
	a) They lose weight at night because fish and other animals eat away at their parts.		b) They become buoyant due to accumulation of oxygen as a result of photosynthesis.
	c) They become light due to consumption of food.		d) The come up to enjoy sunlight.

Q.3	Which of the following cell organelles are responsible for the intracellular transport system?
	a) Mitochondria		b) Ribosome
	c) Endoplasmic reticulum		d) Golgi complex

Q.4	Which of the statement(s) given below is/are correct? I. Aerenchyma tissues are found in hydrophytes. II. The number of stomata is less and sunken in xerophytes. III. Velamen tissues in orchids are found in the root.
	a) Only I		b) Only III
	c) Only II		d) I, II and III

Q.5	A piece of paper and a cricket ball are dropped from the same height. Under which of the following conditions do both reach the surface simultaneously?
	a) They must have the same volume.		b) They must have the same density.
	c) They must have the same mass.		d) They must be dropped in a vacuum.

Q.6	An astronaut in the orbit in a spacecraft feels weightlessness. Which of the following could be the reason for the above statement?
	a) It is due to the absence of gravity inside the spacecraft.		b) It is due to the fact that spacecraft has no energy.
	c) It is because the acceleration in the orbit is equal to acceleration of gravity outside.		d) It is because there is no gravity outside the spacecraft.

Q.7	In which of the following pairs of the ions/atoms are isoelectronic with each other? I. Na+ and Ne II. Na+ and K+ III. K+ and Cl-
	a) I and II		b) I and III
	c) II and III		d) All of the above

Q.8	A field gun of mass 2.4 ton fires a shell of mass 24 kg with a velocity of 120 ms-1. Calculate the velocity of the recoil of the gun:
	a) 1.2 ms-1		b) 1 ms-1
	c) 3.2 ms-1		d) 4.2 ms-1

Q.9	What happens when green tomatoes turn into the red?
	a) Chloroplasts are changed into chromoplasts		b) Chromoplasts are changed into chloroplasts
	c) New chromoplasts are made		d) All of the above

Q.10	In the following question, an assertion and the reason are given. Choose the correct option: Assertion: Mass of a body on earth is equal to the force with which the body is attracted towards the earth. Reason: Weight of a body is independent of the mass of the body.
	a) Both assertion and reason are true and reason is the correct explanation of assertion.		b) Both assertion and reason are true and reason is not the correct explanation of assertion.
	c) Assertion is true but reason is false.		d) Both assertion and reason are false

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 9 -

1. CREST Science Worksheets Package for class 9 - 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 9 - 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 9 for free.

Note: Don’t forget to download the CREST Science Olympiad past year paper pdf for class 9.