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
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.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
Which of the following equations is not an example of displacement reaction?
Q.4
When current flows in a long straight solenoid, north and south poles are created at the two ends. Which of the following statements is/are correct?
Q.5
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.6
What happens when 1 mole of ethyne undergoes complete combustion?
Q.7
Which of the following statements correctly describes the concept of sustainable development?
Planned growth with minimum damage to the environment
Growth irrespective of the extent of damage caused to the environment
Stopping all developmental work to conserve the environment
Growth that is acceptable to all the stakeholders
Q.8
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.9
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.10
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:
Answers to Previous Year Questions from CREST Olympiads:
Q.1
d
Q.2
b
Q.3
b
Q.4
d
Q.5
a
Q.6
c
Q.7
a
Q.8
c
Q.9
b
Q.10
b
Students can find the most recent CREST Science Olympiad previous year paper pdf for class 10 on this page. The pdf is easily downloadable & answer key for all the questions is also provided on the last page.
CREST Science Olympiad previous year papers become quite useful while preparing for the CREST Science Olympiad exam. Below are some advantages of referring to the previous year papers -
Students get to understand the types of questions that come in the CREST Science Olympiad exam.
Practicing previous years’ papers help students to get to know their strengths and weaknesses.
Students become capable of effectively managing their time in the exam by practicing previous years' papers multiple times.
Additional Preparation Resources
Students can also refer to the following resources to level up their CREST Science Olympiad (CSO) exam preparation for class 10 -
CREST Science Worksheets Package for class 10 - 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
CREST Science Olympiad book for class 10 - 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 10 for free.
Note: Don’t forget to download the CREST Science Olympiad past year paper pdf for class 10.
Answers to Previous Year Questions from CREST Olympiads:
Q.1 : d | Q.2 : b | Q.3 : b | Q.4 : d | Q.5 : a | Q.6 : c | Q.7 : a | Q.8 : c | Q.9 : b | Q.10 : b
