National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 5
D

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 4

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Class : Class 4

Ans 2:

Class : Class 4
C

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 5

Read the given paragraph with few blanks and select the option that correctly fills these blanks.
Plants reproduce vegetatively by different means. Plants like ______ reproduce with the help of leaves,______ and ______ reproduce by stem and ______ reproduces by roots. Some plants like mushrooms reproduce by ______.

ABryophyllum, potato, turnip, ginger, spores
BBegonia, onion, rose, sweet potato, seeds
CBryophyllum, rose, potato, turnip, spores
DBegonia, potato, onion, sugarcane, seeds


Ans 1:

Class : Class 5
c

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 5

Ans 3:

Class : Class 5
Ans is A because a weighing scale is used to measure weight of anything.

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Subject :NSO    Class : Class 8

When light falls on a surface, light bounces off the surface. This is called reflection. When light falls on a smooth surface, the surface reflects the light in a well defined manner. The best example is plane mirror.
Why rose appears red in colour to our eyes?

AIt absorbs the red colour and reflects rest of the colours.
BIt absorbs the red colour and refracts rest of the colours.
CIt refracts the red colour and absorbs rest of the colours.
DIt reflects the red colour and absorbs rest of the colours.


Ans 1:

Class : Class 10
DIt reflects the red colour and absorbs rest of the colours.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
You are right. It should be D.

Ans 2:

Class : Class 3
I think you are right it should be D.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Ans is A because bituminous is not an ore, typhoid is not a vector-borne disease and nutcracker is not a class 1 lever.

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