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

Choose the correct option and complete the following sentence:

The wire which melts and breaks the circuit when a large current is allowed to flow through it is called _______.

a)

fuse wire

b)

electric wire

c)

filament

d)

connecting wire

Q.2

Which plant bears spiny seeds with hooks to be dispersed by animals?

a)

Sunflower

b)

Castor

c)

Xanthium

d)

Balsam

Q.3

Consider the following metals and identify which of them can be used under galvanisation:

  1. Zinc
  2. Copper
  3. Aluminium
  4. Iron
  5. Mercury

a)

Zinc and copper

b)

Zinc and aluminum

c)

Zinc and iron

d)

Iron and mercury

Q.4

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.5

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.6

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.7

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.8

Which type of respiration uses oxygen to breakdown the food?

a)

Airobic respiration

b)

Aerobic respiration

c)

Anaerobic respiration

d)

None of these

Q.9

Sita and Gita are two sisters staying in different cities. Both were gifted an iron statue by their brother. Sita has to take a lot of care to maintain the shine of the statue, however, Gita does not need to make such efforts. This is because ______

I. Sita stays in Bombay

II. Gita stays in Bombay

III. The humid weather of Bombay makes the statue prone to rusting

IV. Gita stays in Jaipur          (NSO, 2010)

a)

I, II and III 

b)

I, III and IV 

c)

II and III only 

d)

II and IV only

Q.10

Which of the following distance-time graph shows a truck which is moving with constant speed?



a)

a

b)

b

c)

c

d)

d

Your Score: 0/10


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Answers to Sample Questions from Olympiad Success:

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

Answers to Sample Questions from Olympiad Success:

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

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