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	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.2	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.3	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.4	In the following question, an assertion and a reason are given. Choose the correct option: Assertion (A): Epithelial tissue lining the urinary bladder is transitional epithelium. Reason (R): Transitional epithelium helps in changing the size of the bladder accordingly.
	a) Both A and R are true and R is the correct explanation for A.		b) Both A and R are true, but R is not the correct explanation for A.
	c) A is true and R is false.		d) A is false and R is true.

Q.5	Choose the correct option and complete the following sentence: If you are asked to push an object so that the acceleration produced in it is now twice as before, then the force required will be ___________.
	a) twice as before		b) half as before
	c) same as before		d) four times as before

Q.6	An element X has two isotopes which may be represented as 238X and 235X. How does 238differ from 235X?
	a) It has 3 more protons and 3 more electrons.		b) It has 3 more protons but no more electrons.
	c) It has 3 more neutrons and 3 more electrons.		d) It has 3 more neutrons, but no more electrons.

Q.7	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.8	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.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	Which of the following is the main difference between onion peel cells and human cheek cells?
	a) Presence of mitochondria in onion peel cells only.		b) Presence of cell wall in onion peel cells only.
	c) Absence of plasma membrane in human cheek cells.		d) Absence of endoplasmic reticulum in human cheek cells.

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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 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.