National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
I feel it is not decreasing but increasing so answer will be a

Ans 2:

Class : Class 6
i also want to know the same question

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
answer is D

Ans 2:

Class : Class 7
Due to gravity, both will move downwards, so the correct answer is d

Ans 3:

Class : Class 6
Due to the cooling effect of ice water, the air in the U-tube contracts, due to which the red ink X and Y move downwards.

Ans 4:

Class : Class 5
i had this correct but sof result is showing correct answer is d and i have writen d. BAD MALFUNCTION AND NEGATIVE MARKING IS THERE

Ans 5:

Class : Class 5

Ans 6:

Class : Class 7
answer is D

Ans 7:

Class : Class 6
answer is d because due to the incoming air because of cold water if the water was hot then the ink drops would move up

Ans 8:

Class : Class 5

Ans 9:

Class : Class 3
answer is D

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Subject :NSO    Class : Class 4

Refer to the given diagram of human digestive system and select the correct option regarding parts, X and Y.


AIn part X complete digestion of all components of food takes place.
BIf part Y is removed in a person, then he/she will not be able to digest carbohydrates at all.
CBoth X and Y pour their digestive juices in small intestine for digestion of various components of food.
DY secretes a digestive juice which is capable of digesting fats, proteins and carbohydrates present in food.


Ans 1:

Class : Class 4

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
B is the correct option

Ans 2:

Class : Class 1
It should be B!!

Ans 3:

Class : Class 6
Yes b is correct

Ans 4:

Class : Class 6
thank you

Ans 5:

Class : Class 6
answer should be (B)

Ans 6:

Class : Class 6
answer is b,because the size of the image increases when we move towards it

Ans 7:

Class : Class 7

Ans 8:

Class : Class 7
correct option will be (B)

Ans 9:

Class : Class 6

Ans 10:

Class : Class 6
answer is B

Ans 11:

Class : Class 7
it should be opt b

Ans 12:

Class : Class 7
Answer should be B because if you move towards a mirror ,your image will get bigger.

Ans 13:

Class : Class 6

Ans 14:

Class : Class 6
Answer is B because if you move towards a mirror ,your image will get bigger.

Ans 15:

Class : Class 6
Answer should be b

Ans 16:

Class : Class 7
It should be b

Ans 17:

Class : Class 6
B

Ans 18:

Class : Class 6
it should be B....

Ans 19:

Class : Class 6
Bbbbbbbb

Ans 20:

Class : Class 6
b,its b.

Ans 21:

Class : Class 6
it should be b

Ans 22:

Class : Class 6
B

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
ans : a, in case of option c & d no change of soil fertility in case of option b cyclone do not dissolve soil or rocks in option a saline water can change the soil fertility

Ans 2:

Class : Class 7
ans : a, in case of option c & d no change of soil fertility in case of option b cyclone do not dissolve soil or rocks in option a saline water can change the soil fertility

Ans 3:

Class : Class 7
a

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
no they are not same crater is a depression caused by volcanic eruption or falling of a huge meteorite on the surface of earth

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Subject :NSO    Class : Class 6

Select an incorrect reason for separating components of a mixture.

A To separate two or more different but useful components.
B To remove undesirable and useless components.
C To remove pure or harmless components.
D To obtain pure sample of a substance.


answer should B because in A,C,D they are telling about to separate useful and useless components but in B they are telling to separate useless and useless component and so Bis incorrect from othar

Ans 1:

Class : Class 6
the answer is c

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
D

Ans 2:

Class : Class 4
Sun has its own lights but the other three have not their own.So the right answer should be A.

Ans 3:

Class : Class 3
D is the right answer.

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