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.10

Q.1	In the following question, an assertion and reason are given. Choose the correct option: Assertion: Intercropping checks the population of insects. Reason: Plant pests can be controlled biologically by their natural parasites and pathogens.
	a) Both assertion and reason are true and reason is the correct explanation of assertion.		b) Both assertion and reason are true but reason is not the correct explanation of assertion.
	c) Assertion is true but reason is false.		d) Both assertion and reason are false.

Q.2	In the following question, an assertion and a reason are given. Choose the correct option: Assertion: A mixture of hydrogen and sulphur dioxide gas can be separated using a method of diffusion. Reason: Diffusion is a method of separation by which two gases with greater difference in their densities are separated.
	a) Both assertion and reason are CORRECT and reason is the CORRECT explanation of the assertion.		b) Both assertion and reason are CORRECT, but reason is NOT THE CORRECT explanation of the assertion.
	c) Both assertion and reason are INCORRECT.		d) Both assertion and reason are CORRECT.

Q.3	Choose the correct option: The molecular formula Al2O3 means that ________________.
	a) a molecule contains 2 atoms of Al and 3 atoms of O		b) the ratio of the mass of Al to the mass of O in the molecule is 2 : 3
	c) they are twice as many Al atoms in the molecule as there are O atoms		d) the ratio of the mass of Al to the mass of O in the molecule is 3 : 2

Q.4	Which of the following statements is/are incorrect?  I. Permanent tissue loses its capacity of cell division. II. A meristem is a group of cell that divides continually to form a new cell. III. Companion cells are usually seen associated with the sieve tube.
	a) I and II		b) II and III
	c) I, II and III		d) None of them is incorrect

Q.5	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

Q.6	Fill in the blank: The change in density/pressure of a medium from a maximum value to a minimum value and again to the maximum value, due to the propagation of a longitudinal wave is called a complete __________________.
	a) oscillation		b) frequency
	c) amplitude		d) none of these

Q.7	Kevin carries a bag weighing 6 kg from the ground floor to his house on the first floor that is 10 m high. Calculate the work done by Kevin: (g = 9.8 m/s2)
	a) 500 J		b) Zero
	c) 588 J		d) 58.8 J

Q.8	Which of the following electronic configurations is/are correct?
	a) Ne = 2, 8		b) P = 2, 8, 5
	c) Cl = 2, 8, 6		d) Both a and b

Q.9	An athlete completes one round of circular track of radius r in 60 s with uniform speed. What is the ratio of distance to the displacement travelled by the athlete at the end of 30 s?
	a) 2π/3		b) π/2
	c) 2/3π		d) 2 π

Q.10	A car travels with a constant speed of 50 km/hr for 30 min and then quickly speed up to 100 km/hr to be maintained for 60 min. Calculate its average speed in m/s:
	a) 83.33		b) 43.33
	c) 23.14		d) 40.90

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.