CREST Olympiads - CSO PDF Sample Papers for Class 8

Class 8 sample paper & practice questions for CREST Science Olympiad (CSO) level 1 are given below. Syllabus for level 1 is also mentioned for these exams. You can refer these sample paper & quiz for preparing for the CSO exam.


Sample Questions from Olympiad Success:

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

Q.1

Which of the following is NOT a characteristic feature of sexual reproduction?

a)

It involves the fusion of two reproductive cells.

b)

It is common in most organisms.

c)

Fertilisation may take place inside or outsode the body of the female.

d)

The offspring receives its characteristics from one parent only.

Q.2

Which unit is used to measure the loudness of sound?

a)

m/s

b)

hertz

c)

Decibel

d)

Newton

Q.3

The bulb of an electric tester does not light up at all. What do you think the material is?

a)

Metal

b)

LED

c)

Conductor

d)

Insulator

Q.4

Which microorganism present in the intestine of human and animals helps in the synthesis and digestion of variety of foods?

a)

Virus

b)

Bacteria

c)

Algae

d)

Fungi

Q.5

Which of the following scales are not linear in nature? 

(i) Decibel     (ii) Richter   (iii) Metre   (NSO, 2012)

a)

(i) only

b)

(ii) and (iii)

c)

(ii) only

d)

(i) and (ii)

Q.6

What is the outcome of the release of carbon particles and smoke from factories?

a)

Increases the rate of respiration in plants.

b)

Decreases the rate of photosyntesis in plants.

c)

Increases the absorption of carbon dioxide by plants.

d)

Decreases the rate of transpiration in plants.

Q.7

Here are some words translated from an artificial language. 'myncabel' means 'saddle horse', 'conowir' means 'trail ride' and  'cabelalma' means 'horse blanket'. Which word could mean “horse ride”?

a)

Cabelwir

b)

Conocabel

c)

Almamyn

d)

Conoalma

Q.8

What happens when electric current is made to flow through a conductor?

a)

Some amount of electrical energy is converted into heat energy.

b)

Some amount of electrical energy is converted into mechanical energy.

c)

Some amount of mechanical energy is converted into electrical energy.

d)

Some amount of heat energy is converted into electrical energy.

Q.9

Which of the following instruments is used to detect electrical charge and its nature on a body?

a)

Electron microscope

b)

Electric telescope

c)

Gold-leaf electroscope

d)

None of these

Q.10

Two or more crops that are grown together in same field to fulfill the nutrient requirement of each other is called ________.

a)

Transplantation

b)

Crop rotation

c)

Mixed cropping

d)

Fallowing

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Answers to Sample Questions from Olympiad Success:

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

Answers to Sample Questions from Olympiad Success:

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

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