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

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Q.5

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Q.10

Q.1	Read the statements given below: Statement 1 - Factory wastes are treated with calcium chloride to neutralize the acid. Statement 2 - Magnesium hydroxide is used as an antacid to neutralize the excessive acidity in the stomach. Statement 3 - Common salt neutralizes the acid in the stomach. Which of the above statements are false?
	a) Statements 1 and 2		b) Statements 1 and 3
	c) Statements 2 and 3		d) All - Statements 1, 2 and 3

Q.2	Which of the following statement is correct?
	a) Size of the particles present in a soil has no influence on the properties of soil.		b) Loamy soil is a mixture of sand, clay and silt but contains no humus.
	c) Loamy soil is a mixture of sand, clay and silt, and also contains humus.		d) None of the above is correct.

Q.3	Identify the correct pattern from the given options:
	a) Fibre → Thread →Yarn		b) Fibre → Thread → Fabric
	c) Yarn → Thread→ Fabric		d) Thread → Yarn → Fabric

Q.4	Read the following statements and choose the correct option: Statement 1: From the kidneys, the urine goes into the urinary bladder through the urethra. Statement 2: The kidneys, ureters, bladder and urethra form the excretory system.
	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.5	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.6	Match the following correctly: Organisms How they breathe/respire 1. Cockroach  a. Gills 2. Earthworm b. Spiracles 3. Fish c. Stomata 4. Green plants d. Skin
	a) 1-b, 2-d, 3-a, 4-c		b) 1-a, 2-b, 3-d, 4-c
	c) 1-b, 2-a, 3-c, 4-d		d) 1-b, 2-a, 3-d, 4-c

Q.7	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

Q.8	In the following question, an assertion and a reason are given. Choose the correct option: Assertion: Food stays in the stomach from a few minutes to a few hours depending on the type of food eaten. Reason: Digestion of starch begins in the stomach and digestion of proteins completes in the stomach.
	a) Both assertion and reason are true and reason is the correct explanation of assertion		b) Both assertion and reason are true and reason is not the correct explanation of assertion
	c) Assertion is true but reason is false		d) Assertion is false but reason is true

Q.9	Maya drew the picture of the single-celled organism named amoeba below. Help her to identify parts named A and B and also the function of part A correctly:
	a) Part A- Pseudopodia Part B- Food vacuole Function of part A- To move and capture food.		b) Part A- Mitochondria Part B- Cytoplasm Function of part A- To digest food.
	c) Part A- Cytoplasm Part B- Mitochondria Function of part A- To sense food outside.		d) Part A- Food vacuole Part B- Pseudopodia Function of part A- To digest food.

Q.10	The figure shows air-filled bulbs connected by a U-tube partly filled with alcohol. What happens to the levels of alcohol in the limbs X and Y when an electric bulb placed midway between the bulbs is lighted?
	a) The level of alcohol falls in both limbs.		b) The level of alcohol in the limb X rises while that in limb Y falls.
	c) The level of alcohol in limb X falls while that in limb Y rises.		d) There is no change in the levels of alcohol in the two limbs.

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.