CREST Science Olympiad Class 7 Previous Year Papers

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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

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Q.10

Q.1	The following statements describe how the transport system in plant works. Which of these is a correct sequence? P - Xylem tubes carry water and mineral salts to other parts of the plant. Q - The leaves make food in the presence of sunlight. R - The leaves receive water and mineral salts. S - Phloem tubes transport food to other parts of the plant. T - Root hairs absorb water and mineral salts from the soil.
	a) P →T →Q →R →S		b) T →P →R →Q →S
	c) T→R →P →Q →S		d) R →Q →T →P →S

Q.2	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.
	a) Statement 1 is correct but statement 2 is incorrect.		b) Statement 1 is incorrect but statement 2 is correct.
	c) Both the statements are correct.		d) Both the statements are incorrect.

Q.3	Name the part marked 'X' in the organism shown below:
	a) Spiracles		b) Tracheae
	c) Diaphragm		d) Gills

Q.4	Complete the sentence: The change in the shape of a hot tin can containing water vapour, when cold water is poured on it is because _____________.
	a) pressure outside the can is the same as that inside		b) pressure inside the can becomes less than that outside
	c) pressure inside the can becomes equal to the atmospheric pressure		d) pressure inside the can becomes more than that outside

Q.5	Picture 1 shows an athlete running a race and picture 2 shows a biker riding a bike on a rough mountain. What is the similarity seen between these two pictures?
	a) Both are moving in an uniform motion.		b) Both are moving in a oscillatory motion.
	c) Both are moving in a circular motion.		d) Both are moving in a non-uniform motion.

Q.6	A walker follows the path from A and E (figure) over an 80 s time interval. What total distance does the walker cover between A and E?
	a) 160 m		b) 80 m
	c) 20 m		d) 40 m

Q.7	Which of the following is/are chemical change(s)? Formation of clouds Formation of rust Tearing of a paper Formation of black coating on the walls of the tube light
	a) Only 1		b) Only 2
	c) Both 2 and 3		d) Both 2 and 4

Q.8	Which of the following pair is wrongly classified? Mode of nutrition Examples of plants 1. Autotrophic  Desert plants 2. Heterotrophic  Cuscuta 3. Saprotrophic  Algae
	a) Only 1		b) Only 2
	c) Only 3		d) Both 1 and 2

Q.9	Physical changes are temporary and can be easily reversed to their previous form. Which of the following physical changes is not a reversible change?
	a) Bursting of a balloon		b) Squeezing of a balloon
	c) Cooling of a molten wax		d) Cooling of red hot iron

Q.10	What happens to the strength of an electromagnet when the current passing through its coil is increased?
	a) The strength decreases.		b) The strength remains constant.
	c) The strength increases.		d) The strength reverses polarity.

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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 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.