CREST Science Olympiad Class 7 Previous Year Paper

Getting ready for the Class 7 Science Olympiad? Practising with previous year question papers can be a game changer. These papers not only help students understand the kind of questions asked but also make revision more focused and effective.

What Makes These Papers Useful?

• They cover a range of topics like Heat, Motion and Time, Electric Current and its Effects, Winds, Storms and Cyclones etc.
• They improve logical thinking and help students practise answering within the time limit.
• Each paper comes with an answer key, making it easy to check answers and learn from mistakes.

Download the Science Olympiad Previous Year Paper for Class 7 (PDF) and give your child the right tools to prepare with confidence and perform their best in the exam.

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Syllabus:

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

Sample Paper Previous Year Paper Marking Scheme Free Study Material

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	Match the acids with their uses: Acid Use 1. Benzoic acid  a. As an eyewash, antiseptic and grain preservation               2. Oxalic acid b. For making explosives 3. Nitric acid c. In food preservation 4. Boric acid d. Soft drinks to give it fizz 5. Carbonic acid e. As a constituent of ink stain remover
	a) 1-(a), 2-(e), 3-(b), 4-(d), 5-(c)		b) 1-(c), 2-(e), 3-(b), 4-(a), 5-(d)
	c) 1-(d), 2-(c), 3-(b), 4-(a), 5-(e)		d) 1-(b), 2-(a), 3-(d), 4-(e), 5-(c)

Q.2	Look at the picture given below and identify the step shown that takes place in the processing of wool:
	a) Ginning		b) Sorting
	c) Scouring		d) Shearing

Q.3	An object is placed in front of a mirror. Consider the following steps and arrange them in a sequential order to determine the nature of the mirror: (A) Check whether the image formed is virtual or real. (B) Check whether the virtual image found is diminished magnified or the same size as that of the object. (C) If the image formed is real, the mirror used is concave. (D) If a magnified virtual image is formed, the mirror is concave, if a diminished virtual image is formed, the mirror is convex and if the size of the image is equal to the size of the object, the plane mirror is used.
	a) ACBD		b) BDCA
	c) ACDB		d) BADC

Q.4	Read the given statements and select the correct option: Statement 1: An iron ball at 35oC is dropped in a mug containing water at 305.15 K. Then the heat will flow from the water to the iron ball. Statement 2: In convection, heated molecules of a liquid themselves move to carry heat from the hot region to the cold region,
	a) Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.		b) Both statements 1 and 2 are true and statement 2 is not the correct explanation of statement 1.
	c) Statement 1 is true but statement 2 is false.		d) Statement 1 is false and statement 2 is true.

Q.5	Look at the pictures shown below and identify the similarity between them correctly:
	a) These are chemical changes.		b) These are physical changes.
	c) These show rusting.		d) These show crystallisation.

Q.6	Read the statements given below and select the correct option: Statement 1: The branched part of a tree above the stem is called the crown of the tree. Statement 2: The covering of large trees that serve as a roof to shelter an area or other plants in forests is called understorey.
	a) Statement 1 is correct and statement 2 is incorrect		b) Statement 1 is incorrect and statement 2 is correct
	c) Both the statements are correct		d) Both the statements are incorrect

Q.7	Arrange the following in terms of artificial and natural fibres:                  Flax, Wool, Acetate, Nylon, Rayon
	a) Artificial fibres - Wool, Rayon Natural fibres - Flax, Acetate, Nylon		b) Artificial fibres - Nylon, Acetate, Rayon Natural fibres - Flax, Wool
	c) Artificial fibres - Flax, Wool Natural fibres - Acetate, Nylon, Rayon		d) Artificial fibres - Nylon, Wool Natural fibres - Flax, Acetate, Rayon

Q.8	Read the clues given below and identify the organism: Clue 1: I am an alga. Clue 2: I live together with fungus. Clue 3: I show a symbiotic relationship with the fungus. Who am I?
	a) Lichens		b) Parasites
	c) Mushroom		d) Rhizobium

Q.9	Observe the given figure and identify the parts A and C correctly:
	a) Ovule, pollen grain		b) Egg cell, pollen grain
	c) Ovule, pollen tube		d) Pollen grain, ovule

Q.10	Michael wrote two statements. They are as follows: In the starch test using iodine, the leaf turns blue-black in colour. The structures in the leaves, which contain chlorophyll are called chloroplasts. Which of the above statement(s) is/are true?
	a) Statement 1 only		b) Statement 2 only
	c) Both the statements are true		d) Both the statements are false

Your Score: 0/10

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 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 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.