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

Q.1

Q.2

Q.3

Q.4

Q.5

Q.6

Q.7

Q.8

Q.9

Q.10

Q.1	If different planets have the same density but different radii, then the acceleration due to gravity on the surface of the planet is related to the radius (R) of the planet as:
	a) g ∝ 1/R2		b) g ∝ 1/R
	c) g ∝ R		d) g ∝ R2

Q.2	Which of the following is the basic objective of the pulse polio immunisation programme? To immunise those children who are not earlier immunised or are partially immunised. To boost the immunity of children already immunised. To eradicate the polio-causing virus from the world.
	a) Only 1		b) Only 2
	c) Only 3		d) 1, 2 and 3

Q.3	In the following question, an assertion and the reason are given. Choose the correct option: Assertion: All bryophytes are called amphibians of the plant kingdom. Reason: Water is necessary to complete their life-cycle.
	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.4	A mixture of gases with a pressure of 800 mm Hg contains 10% oxygen and 90% nitrogen by volume. What is the partial pressure of the oxygen gas in the mixture?
	a) 10 mm Hg		b) 80 mm Hg
	c) 700 mm Hg		d) 800 mm Hg

Q.5	Choose the correct option and complete the following sentence: Rohan lives in an overcrowded and poorly ventilated house, it is possible that he may suffer from the _________________ diseases.
	a) hereditary		b) congenital
	c) air borne		d) water borne

Q.6	Consider the following statements and choose the correct option: Statement 1: The number of molecules present in 2.8 g of nitrogen is 6.023 x 1022. Statement 2: Both 44 g CO2 and 16 g CH4 have the same number of carbon atoms.
	a) Statement 1 is correct and statement 2 is incorrect		b) Statement 1 is incorrect and statement 2 is correct
	c) Both the statements are correct		d) Both the statements are incorrect

Q.7	Which of the following cell organelles are responsible for the intracellular transport system?
	a) Mitochondria		b) Ribosome
	c) Endoplasmic reticulum		d) Golgi complex

Q.8	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.9	Which of the following organelles are involved in the protein synthesis? (i) Endoplasmic reticulum (ii) Ribosomes (iii) Golgi complex (iv) Nucleus
	a) (i), (ii) only		b) (i), (ii), (iv) only
	c) (i), (ii), (iii) only		d) (i), (ii), (iii), (iv)

Q.10	Which of the following maintains the organic matter of the soil?
	a) Fungi and semi-parasites		b) Cyanobacteria and parasitic animals
	c) Bacteria and fungi		d) All of these

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.