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

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

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.

Q.2

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 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.

Q.3

Michael wrote two statements. They are as follows:

  1. In the starch test using iodine, the leaf turns blue-black in colour.
  2. The structures in the leaves, which contain chlorophyll are called chloroplasts.

Which of the above statement(s) is/are true?

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:

Q.5

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?



Q.6

Identify the method of heat transfer shown in the figure below:



Q.7

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?

Q.8

A car travels with a uniform speed of 60 km/h. What would be the time taken to travel a distance of 360 km?

Q.9

Arrange the following in terms of artificial and natural fibres:

                 Flax, Wool, Acetate, Nylon, Rayon

Q.10

Which of the following pairs is a correct match?

1. Budding - Bryophyllum
2. Fragmentation - Spirogyra
3. Spore formation - Rose
4. Vegetative Propagation - Fern

Your Score: 0/10

Answers to Previous Year Questions from CREST Olympiads:

Q.1aQ.2cQ.3cQ.4cQ.5cQ.6cQ.7bQ.8cQ.9bQ.10b

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.

Answers to Previous Year Questions from CREST Olympiads:

Q.1 : a | Q.2 : c | Q.3 : c | Q.4 : c | Q.5 : c | Q.6 : c | Q.7 : b | Q.8 : c | Q.9 : b | Q.10 : b

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