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	Identify the INCORRECT statement:
	a) Dead and decaying matter enrich the soil of the forest.		b) Interconnected network of food chains forms a food web.
	c) Forests are called green lungs.		d) Animal excreta pollute the forest floor or soil.

Q.2	Study the circuit shown here. Which switch if opened will cause the light bulb to stop glowing?
	a) P		b) Q
	c) R		d) S

Q.3	Choose the correct option and complete the following sentence: Ozone ________. a. is essential for the breathing of living organisms b. is used to disinfect water c. absorbs ultraviolet rays d. is about 3% in air
	a) b and c		b) a, b and c
	c) a and b		d) c and d

Q.4	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.5	A driver reversing his car at a speed of 3 m/s sees in his rearview mirror the image of a truck parked behind his car. Calculate the speed at which the image of the truck appears to approach the driver. The rearview mirror of a car is a plane mirror:
	a) 1 m/s		b) 2 m/s
	c) 6 m/s		d) 8 m/s

Q.6	A car travels with a uniform speed of 60 km/h. What would be the time taken to travel a distance of 360 km?
	a) 6 minutes		b) 60 minutes
	c) 360 minutes		d) 20 minutes

Q.7	Read the following statements carefully and choose the correct option: 1. Mammals produce their own heat to keep themselves warm at all times. 2. Our skin cannot measure temperature accurately whereas a thermometer can. 3. Alcohol cannot be used to measure temperatures lower than 0oC because the alcohol will freeze. 4. Our body temperature can be measured by placing a clinical thermometer under our tongue.
	a) Only 1 is correct		b) Only 2 is correct
	c) 2, 3, and 4 are correct		d) 1, 2 and 4 are correct

Q.8	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.9	Which of the following organs are parts of the human respiratory system? I. Pharynx II. Nostrils III. Gullet IV. Windpipe V. Lungs
	a) II and V only		b) II, IV and V only
	c) I, II, IV and V only		d) I, II, III, IV and V

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 than 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.