National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
C

Ans 2:

Class : Class 4
C

Ans 3:

Class : Class 5
the correct option is D

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 5
From Athiya Mahapatra : Option)b as the gravitational pull of the moon is one-sixth of that of that which is of the Earth.

Ans 3:

Class : Class 6
B

Ans 4:

Class : Class 5
From Athiya Mahapatra : Option)b as the gravitational pull of the moon is one-sixth of that of that which is of the Earth.

Ans 5:

Class : Class 5
B

Ans 6:

Class : Class 4
B B B B B B

Ans 7:

Class : Class 5
one sixth that is B

Ans 8:

Class : Class 5
From Athiya Mahapatra : Option)b as the gravitational pull of the moon is one-sixth of that of that which is of the Earth.

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Subject :NSO    Class : Class 6

Read the given statements and select the correct option.
Statement 1 : When a horseshoe magnet is brought close to a pile of iron filings, more filings will be attracted to the U-shaped part of the magnet.
Statement 2 : Horseshoe magnet has only one pole that is its U-shaped part.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true but statement 2 is false.
D Both statements 1 and 2 are false.


Ans 1:

Class : Class 6
(C) will be the correct answer

Ans 2:

Class : Class 6

Ans 3:

Class : Class 6
the correct ans should be(D) as the U shaped means the center or mid part of the magnet . (C) cant be as a magnet will always have a north pole and a south pole navya not to be rude

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
b is correct as 72/3= 24 and 55 -24=31

Ans 2:

Class : Class 4

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
very easy

Ans 2:

Class : Class 5
The answer key is wrong

Ans 3:

Class : Class 3

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 10
D is the correct answer as common carp is an omnivore. But over here the answer is given as A. please remove such glitches.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
D

Ans 2:

Class : Class 5

Ans 3:

Class : Class 5
BUOYANT FORCE IS PROPORTIONAL TO VOLUME DISPLACED NOT WEIGHT

Ans 4:

Class : Class 5
From Athiya Mahapatra: Option)a As force Q and Z is Gravitational Force.

Ans 5:

Class : Class 4
l

Ans 6:

Class : Class 5

Ans 7:

Class : Class 5
how???

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Subject :NSO    Class : Class 8

The semi-arid plains of a particular region show a pattern of alternating yellow and black stripes on the ground. The yellow stripes consist of land covered by ripening wheat. The black stripes are bare soil on which no crop is grown but farmers use herbicides or tillage to remove any weeds that try to grow in that region.
Why do farmers in this region manage soils in this way?

A Farmers put the half of their land to rest for minimising erosion and soil degradation.
B Farmers discourage transpiration in the wheat plantation by allowing free evaporation from the soil of the bare stripes.
C Farmers try to store some part of one year’s rainwater in the soil under the bare stripes and use that water to supplement the rain on wheat crop planted the next year.
D All of these


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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5

Ans 2:

Class : Class 4
B is the answer

Ans 3:

Class : Class 4
C is correct

Ans 4:

Class : Class 4
b is correct shivan dpga

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