National Science Olympiad Forum By SOF Olympiad Trainer

Prajith Kumaran from RCIS, Bangalore

Subject :NSO Class : Class 7

If the digits '6' and '4', signs '+' and '×' are interchanged on the left hand side of each option, then which of the following options becomes correct?

A6 + 4 × 2 = 26
B4 + 6 × 2 = 12
C6 × 4 + 2 = 20
D4 × 2 + 6 = 8

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Shraddha K from kumarans, bangalore

Subject :NSO Class : Class 8

The device that is used to measure the intensity of earthquake is

ARichter scale
BBarometer
CPotentiometer
DSonometer

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Ans 1:

Paarth Vashistha from Kunskapsskolan Gurgaon , Gurgaon

Class : Class 8

Ans 2:

The Address from Somaiya, Mumbai

Class : Class 6

Ans 3:

Anant Saxena from Delhi public school Gandhinagar , Gandhinagar

Class : Class 9

should be a seismograph

Ans 4: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

A

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Aaditya Malhotra from Isaac Newton Global School, Mumbai

Subject :NSO Class : Class 5

The material used to make which of the following items can also be used to make a box for transporting cooked food items in order to keep them hot?

A

B

C

D

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Ans 1:

Aaditya Malhotra from Isaac Newton Global School, Mumbai

Class : Class 3

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Aaditya Malhotra from Isaac Newton Global School, Mumbai

Subject :NSO Class : Class 5

If in a certain code language, 'FRIEND' is written as 'IRFDNE', then how will 'MOTHER' be written in the same language?

ATOMREH
BTOMEHR
CREHTOM
DTOMRHE

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Ans 1:

shaurya from St Gregorios High school, Mumbai

Class : Class 5

A

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Faizan2007 from Birla Public School, Doha

Subject :NSO Class : Class 6

Which of the following statements are incorrect?
(i) Changes in our surroundings that make us respond to them are called stimuli.
(ii) The process of getting rid of body wastes by the living organisms is known as excretion.
(iii) Breathing is a part of a process called circulation.
(iv) Aquatic animals have streamlined bodies to help them use oxygen dissolved in water.
(v) Desert plants have many leaves to reduce loss of water from the leaves through transpiration.

A(i), (iv) and (v)
B(ii) and (v)
C(iii), (iv) and
D(i), (iii) and (iv)

The c options's 3 4 and ____ is not mentioned.

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Ans 1:

KRISHIV from BJM Carmel Acadamy, Chandrapur

Class : Class 6

I got 14 out of 14.

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Rishabh Venkat from VSA Bangalore, Bengaluru

Subject :NSO Class : Class 8

Given are the figures for two types of plastics:

Which of the following statements are correct about P and Q?
I. P is a linear polymer whereas Q is a cross-linked polymer.
II. P is plastic whereas Q is a polymer.
III. P is polymer and Q is plastic
IV. A single square represents a monomer unit.

AI and II
BIII and IV
CI, II, III and IV
DIV only

option 2 is confusing

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Saarth Agrawal from Podar International School , Mumbai

Subject :NSO Class : Class 4

Eyjafjallajokull volcano at Iceland erupted twice in the year 2010. It threw out fine, glassrich ash into the atmosphere. It thereby disrupted air traffic across western and northern Europe and caused inconvenience to air travel. Eyjafjallajokull is an example of________.

AVulnerable volcano
BExtinct volcano
CDormant volcano
DActive volcano

It is still active!