Strengthen your child's Science Olympiad preparation with the Class 8 sample paper. It's designed to help students practise key topics and understand the question format.
What's Included? MCQs covering essential Class 8 science concepts. Two sections: Practical Science & Achiever's Section. Answer key with explanations for self-assessment. Download Class 8 Science Olympiad Sample Paper (PDF) Download the free PDF and help your child prepare effectively and confidently.
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Syllabus:
Section 1: Crop Production and Management, Microorganisms, Synthetic Fibres and Plastics, Metals and Non-metals, Coal and Petroleum, Combustion and Flame, Conservation of Plants and Animals, Cell, Reproduction and Endocrine System, Force and Pressure, Friction, Sound, Chemical Effects of Electric Current, Some Natural Phenomena, Light, Stars and the Solar System, Pollution of Air and Water.
Achievers Section: Higher Order Thinking Questions - Syllabus as per Section 1
Sample Paper
Previous Year Paper
Marking Scheme
Free Study Material
Sample Questions
Q.1
What happens when an impure copper rod is taken as the anode and the pure copper rod is taken as the cathode in an electrolysis experiment?
a) The pure copper cathode decreases in size and the impure copper anode increases in size.
b) The pure copper cathode increases in size and the impure copper anode decreases in size.
c) Both the pure copper cathode and impure copper anode increases in size.
d) None of these
Q.2
Fill in the blank:
When an iron nail gets rusted, iron oxide is formed _____________.
a) without any change in the weight of the nail
b) without any change in colour or weight of the nail
c) with decrease in the weight of the nail
d) with increase in the weight of the nail
Q.3
Which of the following is correct definition of ignition temperature?
a) The lowest temperature at which a substance catches fire spontaneously.
b) The lowest temperature at which a substance catches fire.
c) The lowest temperature at which a substance changes its physical state.
d) The lowest temperature required for a chemical reaction to take place.
Q.4
Identify the group(s) which contain all synthetic substances:
P)
Nylon, Terylene, Wool
Q)
Acrylic, Silk, Wool
R)
Cotton, Polycot, Rayon
S)
PVC, Polythene, Bakelite
a) P only
b) Q only
c) S only
d) Both P and S
Q.5
What benefit does yeast gain from carrying out fermentation?
a) Carbon dioxide is available for photosynthesis.
b) Energy is available for growth.
c) Ethanol is available for growth.
d) Glucose is available for respiration.
Q.6
Which of the following pairs cannot undergo displacement reaction?
a) Iron sulphate solution and magnesium
b) Zinc sulphate solution and iron
c) Zinc sulphate solution and calcium
d) Silver nitrate solution and copper
Q.7
An echo returned in 3 s. What is the distance of the reflecting surface from the source, given that the speed of sound is 342 m s-1 ?
a) 520 m
b) 515 m
c) 530 m
d) 513 m
Q.8
What happens in the following reaction?
Fe2 O3 + 3C → 2Fe + 3CO
a) Fe undergoes oxidation and C undergoes reduction
b) Both Fe and C undergo oxidation
c) Both Fe and C undergo reduction
d) Fe undergoes reduction and C undergoes oxidation
Q.9
When a ray of light strikes a plane mirror at an angle of 15o with the mirror, what will be the angle of reflection of the ray?
a) 15o
b) 30o
c) 75o
d) 85o
Q.10
Four classmates were having a discussion about the correct way for sowing seeds. This is what they said:
Richard: Seeds should be sown at right intervals.
Susan: Seeds should be sown at the right depth.
David: Seeds should be sown in dry soil.
Jacob: Seeds should not be sown in highly wet soil.
Which of them was/were incorrect?
a) Only Jacob
b) Only David
c) Both Susan and Richard
d) Both David and Susan
Your Score: 0 /10
Answers to Sample Questions from CREST Olympiads:
Q.1 b Q.2 d Q.3 b Q.4 c Q.5 b Q.6 b Q.7 d Q.8 d Q.9 c Q.10 b
Answers to Sample Questions from CREST Olympiads:
Q.1 : b | Q.2 : d | Q.3 : b | Q.4 : c | Q.5 : b | Q.6 : b | Q.7 : d | Q.8 : d | Q.9 : c | Q.10 : b
