SilverZone - IOS PDF Sample Papers for Class 7

Class 7 sample paper & practice questions for International Olympiad of Science (IOS) 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 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

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

Bryophyllum can reproduce by its ___________.

a)

Stem

b)

flower

c)

Leaves

d)

Roots

Q.4

Which of the following substance break down when we inhale oxygen during respiration?

a)

Glucose

b)

Protein

c)

Fatty acid

d)

Hemoglobin

Q.5

Complete the following equation:- 2 Mg (s) + O2 (g)→ 

a)

2 Mg(s)

b)

2 MgO (s) 

c)

2 MgO (l) 

d)

MgO(s)

Q.6

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.7

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.8

Find the missing character among the given alternatives:



a)

12

b)

13

c)

11

d)

10

Q.9

A sea breeze is caused due to __________.

a)

convection

b)

conduction

c)

radiation

d)

All of these

Q.10

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

Your Score: 0/10


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Answers to Sample Questions from Olympiad Success:

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

Answers to Sample Questions from Olympiad Success:

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

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