CREST Science Olympiad Class 3 Previous Year Papers

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Section 1: Plants and Animals, Birds, Food, Housing and Clothing, Transport and Communication, Human Body, Earth and Universe, Matter and Materials, Light, Sound and Force, Our Environment.

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


Three students were having a discussion about the kind of clothes one should wear. This is what they said:

Sarah: We should wear cotton clothes in summer.
Angel: We should wear woolen clothes in winter.
Maria: We should always wear nylon clothes in the kitchen.
Choose the correct option related to the above statements made by the students:


Look at the pictures of animals given below and identify the similarity between them:


Match the items of Column I with those of Column II and select the correct option:

Column I Column II
1. Terracing a. Decayed vegetable or animal matter
2. Erosion b. Cutting down forests
3. Deforestation c. Practised in hilly areas
4. Humus d. To wear away


Consider the following sequence of planets and answer the question that follows:

Mars, Jupiter, X, Uranus

Identify X:


Plants prepare their food through the process of photosynthesis. Plants need carbon dioxide, sunlight and water to prepare their food. In what form do plants store their food?


Match the column I with the column II and select the correct option:

    Column I      Column II
1. Vulture a. Running bird
2. Ostrich b. Bird of prey
3. Swan c. Scratching bird
4. Quail d. Swimming bird


Carefully look at the respiratory system present in the human body and answer the question below:
Name the sheet of muscles present just below the lungs:


Consider the give statements and choose the correct option:

Statement A: A person eating too much of proteins can suffer from obesity.
Statement B: Fibre-rich foods maintain our body temperature.


What type of clothes protect us from cold?


Read the following statements and choose the correct option:

Statement 1: Matter changes from one state to another with a change in temperature.

Statement 2: Water can be compressed to occupy less space.

Your Score: 0/10

Answers to Previous Year Questions from CREST Olympiads:


Students can download the CREST Science Olympiad previous year paper pdf for class 3 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.

Students who are preparing for the CREST Science Olympiad need to implement some smart study strategies to ace the exam. One such strategy is solving the CREST Science Olympiad previous year papers. These papers help students in developing a deeper understanding of the exam format. Analyzing past years' papers will enable students to recognize:

  1. Different types of questions asked in the exam
  2. The topics that are frequently asked in the exam
  3. The difficulty level of the questions

Students will be better prepared for the CREST Science Olympiad exam if they are aware of the factors mentioned above.

Additional Preparation Resources

Students can also refer to the following resources to level up their CREST Science Olympiad (CSO) exam preparation for class 3 -

  1. CREST Science Worksheets Package for class 3 - 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 3 - 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 3 for free.

Note: Don’t forget to download the CREST Science Olympiad past year paper pdf for class 3.

Answers to Previous Year Questions from CREST Olympiads:

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