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

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 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.2

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:



Q.3

In the following question, an assertion and a reason is given. Choose the correct option:

Assertion: AIDS is not syndrome which results from infection through bacteria.
Reason: AIDS is not transmitted through contact with saliva, breast milk and vaginal secretions of an infected individual.

Q.4

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.

Q.5

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 __________________.

Q.6

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.7

A solid piece of lead experiences certain upthrust. What happens to the upthrust acting on the lead piece when it is shaped into a hollow cube and placed in the same liquid?

Q.8

If two balls of different masses have the same kinetic energy, then ____________.

Q.9

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.

Q.10

Consider the following statements and choose the correct option:

  1. Only liquid phase is present after mixing a teaspoon of solid sugar in a glass of liquid water.
  2. A saturated solution can be converted into unsaturated by increasing temperature.
  3. Clouds are an example of solid in gas solution.

Your Score: 0/10

Answers to Previous Year Questions from CREST Olympiads:

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

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

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