CREST Science Olympiad Class 10 Sample Paper

Help your child excel in the Science Olympiad with the Class 10 sample paper. It's a great tool to practise important topics and understand the exam structure.

What's Included?

  • MCQs covering key concepts from the Class 10 science syllabus.
  • Two sections: Practical Science & Achiever's Section.
  • Answer key with detailed explanations for better understanding.

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Syllabus:

Section 1: Chemical Reactions and Equations, Acids, Bases and Salts, Metals and Non-metals, Carbon and its Compounds, Periodic Classification of Elements, Life Processes, Reproduction in Organisms, Heredity and Evolution, Light-Reflection and Refraction, Human Eye and Colourful World, Electricity, Magnetic Effects of Electric Current, Sources of Energy, Our Environment and its Management.

Achievers Section: Higher Order Thinking Questions - Syllabus as per Section 1

Q.1 Q.2 Q.3 Q.4 Q.5 Q.6 Q.7 Q.8 Q.9 Q.10

Q.1

Olivia measured the focal length of a convex lens by focusing a parallel beam of yellow, violet and green colours at the principal axis. If fy, fv and fg are the respective focal lengths, then which among the following is the correct relation?

Q.2

Consider the following reaction:

2CaO + C → CaC2 + 2CO
2CaC2 + 2H2O → X + Y

If X is involved in the neutralisation reaction with acid, then Y may be:

Q.3

Fill in the blank:

When Ca(NO3)2 is heated, it gives CaO, NO2(g) and O2(g). The correct number of moles of Ca(NO3)2, CaO, NO2(g) and O2(g) are present in the reaction are respectively _________.

Q.4

Match the entries of Column I with those of Column II:

 

Column I

 

Column II

1.    

Stomata

a.    

Anaerobic respiration

2.    

Mangrove trees

b.    

Intake of CO2

3.    

Wood stem

c.     

Pneumatophores

4.    

Yeast

d.    

Lenticels

Q.5

In the following question, an assertion and a reason are given. Choose the correct option:

Assertion: In a simple electric circuit, the positive terminal of the battery is a point of lowest potential.

Reason: The electronic current flow in a circuit is from a point of highest potential to a point of lowest potential.

Q.6

A convex mirror of focal length f produces an image 1/nth of the size of the object. Calculate the distance of the object from the mirror:

Q.7

Which of the following statements correctly describes the concept of sustainable development?

  1. Planned growth with minimum damage to the environment
  2. Growth irrespective of the extent of damage caused to the environment
  3. Stopping all developmental work to conserve the environment
  4. Growth that is acceptable to all the stakeholders

Q.8

When a person walking in bright sunlight enters a dark room, he is not able to see clearly for a little while.

Identify the correct reason for the above statement:

Q.9

In the following question, an assertion and a reason are given. Choose the correct option:

Assertion (A): In any food chain, the number of organisms in any trophic level should always be less than that in its previous trophic level.
Reason (R): Only 10 percent of total energy present in a trophic level is transferred to the next trophic level in any food chain.

Q.10

Match List I (Vegetative propagation type) with List II (Example):

Column I (Vegetative propagation type)

Column II (Example)

1.    

Tuber eye

a.    

Garlic

2.    

Bulb

b.    

Rose

3.    

Cutting

c.     

Potato

4.    

Plantlets at margins of leaves

d.    

Bryophyllum

Your Score: 0/10

Answers to Sample Questions from CREST Olympiads:

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

Answers to Sample Questions from CREST Olympiads:

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

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