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	Which of the following is/are wrongly classified? P: Ingestion - The process of taking food into the body. Q: Absorption - Process by which absorbed nutrients become part of the body. R: Assimilation - Process that involves the transfer of digested food from the intestine into the blood. S: Egestion - Process by which faecal matter is removed through the anus.
	a) Q and R		b) P and Q
	c) R and S		d) P and S

Q.2	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.3	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.4	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.5	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.6	Fill in the blank: Humidity in the air is generally high in ____________________ season.
	a) winter		b) summer
	c) monsoon		d) autumn

Q.7	Read the statements and state whether they are true or false: A convex lens can form a real and inverted image. A concave lens always forms erect, virtual and smaller image than the object.
	a) 1. True 2. False		b) 1. True 2. True
	c) 1. False 2. False		d) 1. False 2. True

Q.8	Look at the picture shown below carefully and identify this step that plays a crucial part in the processing of wool:
	a) Shearing		b) Sorting
	c) Scouring		d) Reeling

Q.9	Study the table given below and identify X, Y and Z correctly from the given options: Parasites Saprotrophs  Insectivorous plants Orchid  Fungi  Venus flytrap X Y Z
	a) X - Pitcher plant Y - Amarbel Z - China rose		b) X - Fungi Y - Algae Z - China rose
	c) X - Pitcher plant Y - Mushroom Z - Cuscuta		d) X - Cuscuta Y - Bacteria Z - Pitcher plant

Q.10	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

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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.