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

The effect of the sting of an ant can be neutralized by rubbing with ________.

a)

Sodium carbonate

b)

Calcium chloride

c)

Calcium carbonate

d)

Sodium hydrogen carbonate

Q.2

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



a)

a

b)

b

c)

c

d)

d

Q.3

Which of the following statements is/are correct?

a)

Phloem tubes are only found in the leaves of plants as this is where the sugars are made.

b)

The volume of blood in an average human adult is 10 litres.

c)

Blood contains many more white blood cells than red blood cells.

d)

All of these

Q.4

Which of these statements is NOT true about white blood cells?

a)

They are white in colour and smaller than red blood cells.

b)

They do not have a definite shape.

c)

They protect us from disease-causing germs by producing antibodies.

d)

They can engulf germs that enter our bloodstream.

Q.5

Dia was performing an experiment which includes the following steps:

Step 1: Two drops of sulphuric acid were added to 1 g of copper sulphate powder and then a small amount of hot water was added to dissolve it.

Step 2: On cooling, beautifully blue coloured crystals got separated.

Identify the changes that took place in step 1 and step 2.

a)

Step 1 - Physical change, Step - 2 Chemical change

b)

Step 1 - Chemical change, Step - 2 Chemical change

c)

Step 1 - Physical change, Step - 2 Physical change

d)

Step 1 - Chemical change, Step - 2 Physical change

Q.6

Mohan saw a plant which he thought to be a legume and wanted to see if it had nitrogen-fixing bacteria. What would he look for?      (NSO, 2009)

a)

Absence  of root hairs

b)

An enlarged taproot

c)

Nodules present on the root

d)

An extensive fibrous root system

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

(2,3), (3,5), (5,7), (7,11), (11,13), (?)

a)

(13,15)

b)

(15,16)

c)

(13,17)

d)

(13,19)

Q.9

Which type of respiration uses oxygen to breakdown the food?

a)

Airobic respiration

b)

Aerobic respiration

c)

Anaerobic respiration

d)

None of these

Q.10

An expert agriculturist suggested the farmer minimize the use of chemical fertilizers and instead use biofertilizers as they have many advantages over chemical fertilizers. Which of the following is not true regarding biofertilizers?          (Set-B     NSO, 2013)

a)

They are economical.

b)

They will least pollute the lake.

c)

They are renewable.

d)

They require large set-up for their production.

Your Score: 0/10


Sample PDF of CREST Olympiads - CREST Science Olympiad (CSO) PDF Sample Papers for Class 7:


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Answers to Sample Questions from Olympiad Success:

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

Answers to Sample Questions from Olympiad Success:

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

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