National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
answer is d 88 cm2

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 4

The given diagram shows the positions of water plants P, Q, R and S in a pond. Four pupils Vikas, Shilpi, Beena and Rahul were asked to identify the positions of four plants, viz. water hyacinth, Hydrilla, coontail and water lily in the pond.
Which of these pupils has identified the positions of all given water plants correctly?

Position of plant in the pond
Pupil Water hyacinth Hydrilla Coontail Water lily
A Vikas P Q R S
B Shilpi S P Q R
C Beena P S Q R
D Rahul Q P S R


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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
This is based on life cycle of insects. Only butterfly in the given group of insects have 4 stage life cycle (complete cycle). Others have only incomplete life cycle (3 stages)

Ans 2:

Class : Class 4
I think they mean that butterfly has four wings

Ans 3:

Class : Class 4
How is butterfly odd

Ans 4:

Class : Class 4
It is B cause grasshoppers can’t fly

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Subject :NSO    Class : Class 8

The given flow chart shows the sequence of various steps involved in crop production. Identify the missing steps and select the incorrect statements regarding them.

I. Process P helps in the intake of minerals by the plant.
II. Process Q can also be done before sowing of seeds.
III. Process Q is usually done manually using khurpi, etc. when performed after P.
IV. After R, the left over in the field can be used as manure by farmers.
V. T can be done using a thresher or a combine.

AI and II only
BII and III only
CIV and V only
DV only


The solution says that the answer is d but isn’t statement V correct?

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
The answer is c.

Ans 2:

Class : Class 5

Ans 3:

Class : Class 4
The answer is c.

Ans 4:

Class : Class 5

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Subject :NSO    Class : Class 3

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