CREST Olympiads - CSO PDF Sample Papers for Class 7

Class 7 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

Some bases along with their sources are given below. Which of them is incorrectly matched?

a)

Calcium hydroxide - Lime water

b)

Ammonium hydroxide - Window cleaner

c)

Magnesium hydroxide - Whitewash

d)

Potassium hydroxide - soap

Q.2

Choose the correct option and complete the following sentence:

The tiny pores in the leaves of the plants used for the exchange of gases are ____________.

a)

stomata

b)

tracheae

c)

chloroplast

d)

spiracles

Q.3

Choose the correct option which will complete the following passage:

_________ are synthesised by plants through the process of photosynthesis. These are made of carbon, hydrogen and _________. These are used to synthesise other components of food such as proteins and fats. 

a)

Vitamins, Nitrogen

b)

Carbohydrates, Nitrogen

c)

Carbohydrates, Oxygen

d)

Vitamins, Oxygen

Q.4

If addition stands for S, subtraction stands for A, multiplication stands for D and division stands for M then, 24 S 34 A 28 M 7 D 4 =?

a)

12

b)

18

c)

54

d)

42

Q.5

Complete the following sentence:

The solutions which do not change the colour of either red or blue litmus are known as __________.

a)

acidic solutions

b)

base solutions

c)

neutral solutions

d)

indicator

Q.6

Divya while studying the circuit of an electric fan observes that a plug connected to a fan contains a 3 A fuse. Why is the fuse needed?

a)

To reduce the voltage across the fan.

b)

To protect the fan from damage caused by a large current

c)

To make it easier for the current to flow

d)

To decrease the resistance of the circuit

Q.7

An electromagnet is one which behaves as a magnet when current is _______________.

a)

stopped from flowing through it

b)

allowed to flow through

c)

not allowed to flow through

d)

none of these

Q.8

Find out the two signs to be interchanged for making following equation correct: 6 + 4 x 5 - 8/ 4 = -12

a)

- & +

b)

- & /

c)

+ & /

d)

x & /

Q.9

Which of the following statements is/are correct?

a)

The level of expansion of mercury is used to measure the temperature of a substance using a thermometre.

b)

A clinical thermometre measures temperature more accurately than laboratory thermometre.

c)

The normal temperature of a human is the average body temperature of a large number of a healthy person.

d)

All of these

Q.10

A carnivore with stripes on its body moves very fast while catching its prey. Where does it is most likely to be found?

a)

Polar regions

b)

Oceans

c)

Deserts

d)

tropical rainforests

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Answers to Sample Questions from Olympiad Success:

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

Answers to Sample Questions from Olympiad Success:

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

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