National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
x and y are adi's maternal grandparents, and x y have 3 children-2 daughters, one son. One daughter has no child, the other daughter has 1 son only who is Adi ( right lower square ). Adi has no siblings. So the answer is A.

Ans 2:

Class : Class 4
Aarush how did you know that adi is in the right lower square ? It can also be in one of the left squares

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 3
Air is good conductor of heat.

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Subject :NSO    Class : Class 3

Ans 1:

Class :
1087 1807 8071 7081 7801 8701 8107 8017 C 8

Ans 2:

Class : Class 2

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
good

Ans 2:

Class : Class 8
Divide each square into four parts just like the one of them in the figure. Total 16 squares will be there. Now int the first box there two whole squares and two halves forming (the triangle) one more square. In the second box there is one whole square and two halves forming one more square. Next in the third box there are already two box shaded. In the last box if the triangle is divided into pieces and formed into a square one more square is found. So total there are 8 squares shaded out of 16 squares which is 8/16 which when divided further is 1/2.

Ans 3:

Class : Class 7

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
B

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

Class : Class 5
correct answer is a

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Subject :NSO    Class : Class 4

Select the option that correctly compares clothes made from natural and synthetic fibres.

-------Clothes made of natural fibres---------Clothes made of synthetic fibres
AQuick drying-------------------------------------Slow drying
BNon-porous---------------------------------------Porous
CBiodegradable------------------------------------Non-biodegradable
DNon-waterproof----------------------------------Waterproof


Is this answer correct? Option D is correct as per system!

Ans 1:

Class : Class 4
C

Ans 2:

Class : Class 7
I too think C. is the correct answer.

Ans 3:

Class : Class 4
I think C is the right ans

Ans 4:

Class : Class 5
c is correct

Ans 5:

Class : Class 4

Ans 6:

Class : Class 5
C is also correct.So option should be C and D.

Ans 7:

Class : Class 5
Option C is the correct ans

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
C.BROCCOLI-FLOWER

Ans 2:

Class : Class 5
answer c is correct because broccoli is a flower but what a you are saying is wrong because potato is a stem not a root

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Subject :NSO    Class : Class 4

Read the given passage carefully.
Houseflies go through stages in their life cycle. The housefly lays hundreds of eggs at a time. Each egg hatches to produce a young one called a . The larva of a housefly is called . After some days, the larva becomes barrel-shaped. It is now called a . The pupa is covered by a . The e breaks open in a week and a young housefly comes out.Select the option which correctly fills any three blanks.

Aa - four ,     c - nymph ,     d - cocoon
Bb - larva ,    d - pupa ,       e - cocoon
Ca - three ,     b - larva ,      d - pupa
Dc - maggot ,  d - pupa ,     e - nymph


Ans 1:

Class : Class 5
correct answer is b, because he has asked to fill any 3 blanks with correct option.

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