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

Q.4

Q.5

Q.6

Q.7

Q.8

Q.9

Q.10

Q.1	Read the following statements and choose the correct option: Statement 1: The presence of circulatory system is not the characteristic feature of protochordata. Statement 2: Rhizopus is the common 'black bread mould' fungus.
	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.2	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.3	A gold manufacturing company manufactures gold coins with absolutely pure gold. If the mass of each gold coin is 9.85 g and 1000 gold coins are manufactured per day, calculate the number of moles of gold consumed per day. (At. wt. of gold is 197 amu)
	a) 5		b) 50
	c) 100		d) 0.05

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	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.6	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

Q.7	The distance between 2nd crest and 6th trough of a wave shown below is 24 cm. If the wave velocity of the moving crests is 20 m s-1, then the frequency of rocking of the boat is:
	a) 24 Hz		b) 20 Hz
	c) 375 Hz		d) 240 Hz

Q.8	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.9	Consider the following statement and choose the correct option: I. A book raised at an angle has positive work done. II. A book is raised and is at rest has positive work done. III. The work done in bringing a book from the first floor to the ground floor through the staircase is negative.
	a) Only I is correct		b) Both I and II are correct
	c) Both I and III are correct		d) I, II and III are correct

Q.10	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

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.