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Examination

Olympiad class 8

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12:55

Exam Name: Science Olympiad for Class-8

General Instructions

Number of Question: 10
Time: 5 Minutes
Correct Answer: 2 Marks
Wrong Answer: 0 Marks

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You are running out of time! few seconds are remaining.

1.

The cell formed after fertilization is called

zygote

egg

embryo

foetus

None

You are running out of time! few seconds are remaining.

2.

Pitch of sound is determined by its

loudness

speed

frequency

amplitude

None

You are running out of time! few seconds are remaining.

3.

The chemical substances rich in nutrients are called

fertilizer

weedicide

pesticides

herbicides

None

You are running out of time! few seconds are remaining.

4.

Which one of the following gases is used in combustion?

Oxygen

Nitrogen

Carbon dioxide

Hydrogen

None

You are running out of time! few seconds are remaining.

5.

Materials having qualities of both metals and non-metals are

metalloids

none of these

noble metals

alloys

None

You are running out of time! few seconds are remaining.

6.

Which zone represents the partial combustion in candle flame?

Middle zone

Inner zone

Outer zone

Lower zone

None

You are running out of time! few seconds are remaining.

7.

Which of the following is a bad conductor of electricity?

Copper sulphate

Distilled water

Sulphuric acid

Silver nitrate

None

You are running out of time! few seconds are remaining.

8.

The voice box is also called as

larynx

mouth

stomach

heart

None

You are running out of time! few seconds are remaining.

9.

Which of the following produces least friction?

Static friction

Sliding friction

Rolling friction

Composite friction

None

You are running out of time! few seconds are remaining.

10.

Which of the following is a good conductor?

Steel

Plastic

Brick

Cotton

None

1 2 3 4 5 6 7 8 9 10

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