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.

>>> Join CREST Olympiads WhatsApp Channel for latest updates. CREST Science Olympiad Previous Year Paper PDF for Class 9:


If your web browser doesn't have a PDF Plugin. Instead you can Click here to download the PDF

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

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

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.

Q.2

Which of the statements given below are correct about a tissue?

I. Epithelium tissue forms a protective layer of the body.
II. Transmission of stimuli from one part of the body to other part takes place through nervous tissue.
III. Blood is an example of tissue.

Q.3

Select the correct reason for the given statement:

Algae and other submerged green plants often float in water during daytime and sink at night.

Q.4

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-

Q.5

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:

Q.6

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.

Q.7

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.

Q.8

Which of the following is the basic objective of the pulse polio immunisation programme?

  1. To immunise those children who are not earlier immunised or are partially immunised.
  2. To boost the immunity of children already immunised.
  3. To eradicate the polio-causing virus from the world.

Q.9

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.

Q.10

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:

Your Score: 0/10

Answers to Previous Year Questions from CREST Olympiads:

Q.1bQ.2dQ.3bQ.4bQ.5cQ.6dQ.7cQ.8dQ.9dQ.10a

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.

Answers to Previous Year Questions from CREST Olympiads:

Q.1 : b | Q.2 : d | Q.3 : b | Q.4 : b | Q.5 : c | Q.6 : d | Q.7 : c | Q.8 : d | Q.9 : d | Q.10 : a

70%