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 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.3

How are Paramoecium and Amoeba are similar?

a)

Unicellular

b)

Does not have a nucleus

c)

Reproduce by binay fission

d)

Both a and c

Q.4

Of the four choices, choose the picture that would go in the empty box so that the two bottom pictures are related in the same way as the top two are related.



a)
b)
c)
d)

Q.5

On what factors does the frequency of sound depend in wind instruments?

a)

The length of the air column

b)

The breadth of the air column

c)

The force with which the wind is blown

d)

All of the above

Q.6

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

Q.7

Chemical compound whose molecules ionize into positively and negatively charged ions in a solution are called __________.

a)

Electrolyte

b)

Non-electrolyte

c)

Molten metal

d)

Salt solution

Q.8

The interlocking of two surfaces give rises to ___________.

a)

Electrostatic force

b)

Magnetic force

c)

Frictional force

d)

Gravitational force

Q.9

 A student examined a particular plant cell through its various stages of growth. After making various measurements, he realised that the increase in cell size was largely due to enlargement of the central vacuole rather than an increase in the amount of cytoplasm. Why might this be an advantageous strategy for the cell? (NSO, 2015)

a)

Enlarging the cytoplasm would make the cell less turgid.

b)

Enlarging the vacuole would make it unnecessary for the cell wall to stretch.

c)

Enlarging the vacuole would minimise any lowering of the surface area - volume ratio of the cytoplasm.

d)

All of these

Q.10

Find the pair that has a similar relationship as Pulsate: Throb.

a)

Examine : Scrutinize

b)

Walk : Run

c)

Tired : Sleep

d)

Ballet : Dancer

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Sample PDF of CREST Olympiads - CREST Science Olympiad (CSO) PDF Sample Papers for Class 8:


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Answers to Sample Questions from Olympiad Success:

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

Answers to Sample Questions from Olympiad Success:

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

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