CREST Science Olympiad Class 7 Previous Year Papers

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Section 1: Heat, Motion and Time, Electric Current and its Effects, Winds, Storms and Cyclones, Light, Acids, Bases and Salts, Physical and Chemical Changes, Weather, Climate and Adaptations of Animals to Climate, Fibre to Fabric, Nutrition in Plants and Animals, Respiration in Organisms, Transportation in Plants and Animals, Reproduction in Plants, Natural Resources and Their Conservation.

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


Look at the pictures of sealing wax, wooden statue and catechu and identify the similarity between them correctly:


Consider the following statements and choose the correct option:
Statement 1: During a chemistry demonstration, the teacher combined hydrogen gas with oxygen gas to form water. This is an example of reversible physical change.
Statement 2: Jack conducted an experiment where he mixed vinegar (acetic acid) and baking soda (sodium bicarbonate), resulting in fizzing and the formation of carbon dioxide gas. This is an example of irreversible physical change.


Choose the INCORRECT statement from the following options related to photosynthesis:


Name the part marked 'X' in the organism shown below:


Fill in the blanks:
1. Angle between _________ and _________ is called as the angle of reflection.
2. Angle of incidence is always _______ angle of reflection.


What is the similarity between quinine, sandalwood oil and eucalyptus oil?


Select the correct statement(s):

1. Manures and fertilizers are added to increase the fertility of the soil.
2. Sun is the ultimate source of energy for all living organisms.
3. Cells of the pitcher of Nepenthes plant secrete digestive juices to digest the insect.


Which of the following pairs is/are INCORRECT?

Name of the acid Where is it found?
P. Acetic acid Vinegar
Q. Citric acid Orange
R. Formic acid  Spinach
S. Oxalic acid Ant's sting


Look at the pictures shown below and spot the similarity between them:


Study the given experimental set up.
What will happen to the drop of fluid in the capillary tube over the next few hours?

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 7 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 7 -

  1. CREST Science Worksheets Package for class 7 - 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 7 - 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 7 for free.

Note: Don’t forget to download the CREST Science Olympiad past year paper pdf for class 7.

Answers to Previous Year Questions from CREST Olympiads:

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