CREST Science Olympiad Class 6 Previous Year Papers

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Section 1: Motion and Measurement of Distances, Light, Shadows and Reflections, Electricity and Circuits, Fun with Magnets, Our Environment, Sorting and Separation of Materials, Changes Around Us, Living Organisms and Their Surroundings, Food and its Components, Fibre to Fabric.

Achievers Section: Higher Order Thinking Questions - Syllabus as per Section 1

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Q.1 Q.2 Q.3 Q.4 Q.5 Q.6 Q.7 Q.8 Q.9 Q.10


Separating mixtures is a scientific process in which two or more substances are separated which were once together. Separating mixtures is useful in many different ways.
Identify the example of the way by which mixtures are separated to remove undesirable components:


Consider the following statements and choose the correct option:
Statement 1: When separating a mixture of saltwater (solution), filtration method is employed to obtain pure salt from the solution.
Statement 2: Fractional distillation is employed to separate a mixture of iron filings and powdered sugar (sucrose).


Read the statements given below and select the correct option:

Statement 1 - When the size of the foreign particle is too small to be picked by hand or when the quantity is too large, sieving is used for separating substances.
Statement 2 - Separating bran from flour is done by sieving.


Milk turns sour when kept outside for a long time. What kind of change does it depict?


Given below are two groups of fibres namely I and II:

Group I - Cotton, Jute, hemp
Group II - Polyester, Nylon, Acrylic
On what basis have these fibres been grouped? 


Which of the following is/are NOT the characteristic feature(s) of the cotton ginning process?


How is toasting of bread different from melting of wax?


Two classmates were having a classroom discussion about the air around us. This is what they said:

Student 1: When we blow onto a hot cup of tea, cool air gets mixed with outside warm air and it becomes cooler.
Student 2: Without blowing air from our mouth we can cool the hot fried rice by spreading it over on a plate.
Choose the correct option related to the above two statements:


Observe the picture below of three bulbs and correctly identify the type of object they are made of:


Given below are a set of phenomena:

1. Folding the paper into an aeroplane.
2. Melting of ice candy.
3. Wet clothes to dry clothes
4. Dissolving sugar in water

What is the basis of the given grouping?

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Answers to Previous Year Questions from CREST Olympiads:


Students can find the most recent CREST Science Olympiad previous year paper pdf for class 6 on this page. The pdf is easily downloadable & answer key for all the questions is also provided on the last page.

CREST Science Olympiad previous year papers become quite useful while preparing for the CREST Science Olympiad exam. Below are some advantages of referring to the previous year papers -

  1. Students get to understand the types of questions that come in the CREST Science Olympiad exam.
  2. Practicing previous years’ papers help students to get to know their strengths and weaknesses.
  3. Students become capable of effectively managing their time in the exam by practicing previous years' papers multiple times.

Additional Preparation Resources

Students can also refer to the following resources to level up their CREST Science Olympiad (CSO) exam preparation for class 6 -

  1. CREST Science Worksheets Package for class 6 - 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 -> Dashboard -> Additional Practice -> Buy & new users can visit
  2. CREST Science Olympiad book for class 6 - 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 6 for free.

Note: Don’t forget to download the CREST Science Olympiad past year paper pdf for class 6.

Answers to Previous Year Questions from CREST Olympiads:

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