CREST Science Olympiad Class 10 Sample Paper

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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

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

Q.1

Why shouldn't we light a candle in a closed room with people?

Q.2

Match column I with column II and select the correct answer using the codes given below:

 

Column I

 

Column II

1.    

Element with a smallest atomic radius

a.    

Ca

2.    

Element with the largest atomic radius

b.    

F

3.    

Element with the highest electron affinity

c.    

Cl

Q.3

Refer to the given diagram and select the incorrect option regarding X and Y:



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

Fill in the blank:

When a ray of light falls on a transparent glass plate, a part of it is reflected and a part is refracted. The reflected and refracted rays can be perpendicular to each other for ____________.

Q.6

An air bubble in a glass slab (μ = 3/2) is 6 cm deep when viewed from one face and 3 cm deep when viewed from the opposite face. Determine the thickness of the slab:

Q.7

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

Assertion: The magnetic field produced by a current-carrying solenoid is independent of its length and cross-section area.

Reason: The magnetic field inside the solenoid is uniform.

Q.8

Which environmental hazard is not contributed by the combustion of fossil fuels?

Q.9

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.10

Identify the correct sequence of fractions obtained when petroleum is subjected to fractional distillation:

  1. Lubricating oil
  2. Petrol
  3. Petroleum ether
  4. Diesel oil

Your Score: 0/10

Answers to Sample Questions from CREST Olympiads:

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

Practicing sample papers for the CREST Science Olympiad for class 10 is the most effective way to achieve the highest possible score in the exams. Students learn to manage time and solve questions within the time limits by practicing sample papers. Science Olympiad previous years’ question papers for class 10 are considered to be the best means to know the variety and types of questions well that you might come across. Students willing to participate in the CREST Olympiad exams require to have a thorough understanding of the exam pattern which is only possible with regular practice of sample papers. CREST Olympiads makes available Science Olympiad previous year papers online for free download. 

Answers to Sample Questions from CREST Olympiads:

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

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