National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 1

Ans 1: (Master Answer)

Class : Class 1
The black air causes air pollution and it makes the air dirty. Hence, the correct answer is B.

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 5
A

Ans 2:

Class : Class 2

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9
In the first and second option, the magnetic materials are iron nail and steel nail respectively. In the third option all are non magnetic. In fourth option, both are magnetic materials. Therefore Ans:- A (i) and (ii)

Ans 2:

Class : Class 7
But in containers I

Ans 3:

Class : Class 7
IT SHOULD BE A

Ans 4:

Class : Class 6
No, the answer is A as both steel and nickel are magnetic .

Ans 5:

Class : Class 7
But...Iron, nickel and copper r magnetic, and both steel and aluminium r non-magnetic. Then why option A is correct ans???

Ans 6:

Class : Class 6
the answer will be C as 3 option is non-magnetic

Ans 7:

Class : Class 8
Yes the answer is C as iron nail , nickle and steel are magnetic

Ans 8:

Class : Class 7
But in containers i

Ans 9:

Class : Class 7
answer is c nickel coin is also a magnetic substance but steel is a non magnetic substance

Ans 10:

Class : Class 6

Ans 11:

Class : Class 6
c

Ans 12:

Class : Class 6
copper is non magnetic

Ans 13:

Class : Class 6
C

Ans 14:

Class : Class 7

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Subject :NSO    Class : Class 6

Read the following passage carefully.
P helps to maintain strong eyesight and healthy skin. Q is required for normal growth of bones and teeth in children. R is essential for proper functioning of muscles and nerves. S is needed for natural clotting of blood.
Identify P, Q, R and S and select the incorrect statement regarding these.

A Q is produced when the skin is exposed to sunlight.
B R is a mineral, deficiency of which causes spasms, poor digestion, anxiety and sleeplessness.
C Cod liver oil is a good source of both P and S.
D S is synthesised in our body by bacteria present in the gut.


Ans 1:

Class : Class 6
S-vitamin K

Ans 2:

Class : Class 6
Q is Vitamin D.

Ans 3:

Class : Class 7
what is gut??????

Ans 4:

Class : Class 7
The question has some error......Can anyone find it and declare? Please!!!!

Ans 5:

Class : Class 6
P-vit a ,Q- vit d

Ans 6:

Class : Class 9

Ans 7:

Class : Class 7

Ans 8:

Class : Class 6
answer is (d)

Ans 9:

Class : Class 6

Ans 10:

Class : Class 6
R-magnesium

Ans 11:

Class : Class 7
Can someone please tell me what are the nutrients?

Ans 12:

Class : Class 6
ummm intestine?

Ans 13:

Class : Class 7
gut means intestine and spasms means muscles suddenly contracting involuntarily.

Ans 14:

Class : Class 6

Ans 15:

Class : Class 6
What is spasms????

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
Melamine resits fire and firefighers also wear their suits made up of melamine.

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Subject :NSO    Class : Class 1

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
(A) > 12u*60+1u*22=742u i. e. 742* mass of 1u (1.6605x10 to the power - 24) = answer A (approximate value)

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