CREST Science Olympiad Class 4 Previous Year Papers

CREST Science Olympiad Previous Year Paper PDF for Class 4:

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Section 1: Plants, Animals, Food and Digestion, Clothing, Matter and Materials, Force, Work and Energy, Our Environment, Earth and Universe.

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

Please visit for free preparation material.

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


Which of the following statements hold true regarding the given plants X and Y?

  1. Plant X grows in a place where there is very little rainfall, whereas plant Y grows in cold mountainous region.
  2. In plant X, leaves are flat and thin whereas leaves in plant Y are broad.
  3. In plant X, roots have tiny openings at their tips whereas in plant Y roots are long.
  4. In plant X, leaves are modified into spines whereas in plant Y leaves are thin and needle-like.


Consider the following statements and choose the correct option:

Statement 1: A man cuts down the trees and modifies his environment to make life comfortable. By deforestation, he clears the land for agriculture, industries and habitat.

Statement 2: Plants and animals are interdependent. The decay of dead plants and animals provides nutrition to the soil which in turn help in the growth of plants and trees.


Choose the correct option which answers the following question:

Waterlogged places are called swamps or marshes. Marshy regions have sticky and clayey soil. Which of the following have breathing roots since air cannot reach the roots of these plants?


Matter exists in three states. Which of the following figures shows the arrangement of particles in a solid state?


State which of the following statements are true or false:

1. The painting uses the separation process of evaporation.
2. The separation process of winnowing is used to separate salt from water.
3. Water droplets are seen on the outer surface of a glass when cold water is poured in it. This is due to the condensation of water vapour present in the atmosphere.


State the effect of the force in each of the following cases:

  1. James blows the air from his mouth on the smoke rising up from a burning stick. 
  2. When we sit on a sofa with springs, then the springs of the sofa get compressed.


The given picture shows the fruit of a plant called cocklebur.

Choose the method by which the seeds in the fruit are dispersed:


Name the following:

1. The brightest planet in the solar system
2. Dwarf planet
3. Red planet


Fill in the blank:

In a banyan tree, roots grow from the branches, reach the soil and continue growing below the soil. These are called ________________ roots.


Fill in the blank:

The digestion process starts in the mouth. From the mouth, the food reaches the stomach through the oesophagus. The stomach secretes acids and enzymes that digest food. The thick semifluid mass of partially digested food and digestive secretions that is formed in the stomach and intestine during digestion is called  _________.

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Answers to Previous Year Questions from CREST Olympiads:


Students can download the CREST Science Olympiad previous year paper pdf for class 4 from this page. Each question in the paper carries 1 mark. The answer key for all the questions is also provided on the last page.

One of the most significant advantages of solving the past years’ papers is that it helps students improve their time management skills, strengthens their understanding of concepts and aids them in applying the concepts they have mastered. Also, solving previous years’ papers a few days before the exam can help students to revise the concepts quickly. Therefore, students must refer to previous years' papers before appearing for the final exam as many advantages are associated with it.

Additional Preparation Resources

Students can also refer to the following resources to level up their CREST Science Olympiad (CSO) exam preparation for class 4 -

  1. CREST Science Worksheets Package for class 4 - 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 4 - 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 4 for free.

Note: Don’t forget to download the CREST Science Olympiad past year paper pdf for class 4.

Answers to Previous Year Questions from CREST Olympiads:

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