National Science Olympiad Forum By SOF Olympiad Trainer - Page 623

User Forum

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
C is the correct option

Ans 2:

Class : Class 7
correct answer is D

Ans 3:

Class : Class 5
its d for gods sake

Ans 4:

Class : Class 6
you all are wrong because I wrote ans. b and it showed that my answer was correct

Ans 5:

Class : Class 6
The correct answer is D.

Ans 6:

Class : Class 4
C

Ans 7:

Class : Class 7

Ans 8:

Class : Class 6
It is d

Ans 9:

Class : Class 7
Answer is 'D'.The premolars grind food.Rest all are wrong matches, only this is correct

Ans 10:

Class : Class 5
The answer is D

Ans 11:

Class : Class 4
C is the correct option

Ans 12:

Class : Class 4

Ans 13:

Class : Class 8
answer is d

Ans 14:

Class : Class 5
Answer: option D

Ans 15:

Class : Class 5
Sunayana Singh , THAT MUST BE AN ERROR , HOW ARE WE SEEING THAT CORRECT ANSWER IS D !!!!!!

Ans 16:

Class : Class 5
how is premolar a grinder it is a cracking teeth Vivaan Gulati

Ans 17:

Class : Class 4
C

Ans 18:

Class : Class 5
what!!

Ans 19:

Class : Class 5
the correct option is D

Ans 20:

Class : Class 5
JOk

Ans 21:

Class : Class 6

Ans 22:

Class : Class 7
the question is wrong

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
Bbbbbbbbbbbbbbbbbbb.

Ans 2:

Class : Class 4
B B B B B B

Ans 3:

Class : Class 5
The correct answer is B

Ans 4:

Class : Class 6

Ans 5:

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 6:

Class : Class 5
The five dwarf planets of the solar system are Eris, Haumea, MakeMake, Ceres and Pluto

Ans 7:

Class : Class 6
one sixth that is B

Ans 8:

Class : Class 3
B

Ans 9:

Class : Class 6
B

Ans 10:

Class : Class 9

Ans 11:

Class : Class 5
b

Ans 12:

Class : Class 5

Ans 13:

Class : Class 9
What.....

Ans 14:

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 15:

Class : Class 4
B is the answer

Ans 16:

Class : Class 8

Ans 17:

Class : Class 7
The answer should be the B option because it shows 1/6 of the gravitational pull

Ans 18:

Class : Class 5

Ans 19:

Class : Class 1

Ans 20:

Class : Class 6

Ans 21:

Class : Class 5
b is the answer

Ans 22:

Class : Class 5
ans-b

Ans 23:

Class : Class 5
answer is option b

Ans 24:

Class : Class 8
Option B is correct answer

Ans 25:

Class : Class 7
B

Ans 26:

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 27:

Class : Class 7
B

Ans 28:

Class : Class 7
B

Post Your Answer

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 8

Ans 2:

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

Ans 3:

Class : Class 6
THE ANSWER IS B NERDS

Ans 4:

Class : Class 6
c is the answer

Ans 5:

Class : Class 6

Ans 6:

Class : Class 7

Ans 7:

Class : Class 8

Ans 8:

Class : Class 6

Ans 9:

Class : Class 8

Ans 10:

Class : Class 6
The answer is C as a magnet is a dipole or has 2 poles scientists are conducting experiments to find a monopole magnet but have still not found it as all such magnets will have 2 poles ie. north and south. Hope to see this fixed!

Ans 11:

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

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 8

Ans 2:

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

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 7

Ans 2:

Class : Class 8
very easy

Ans 3:

Class : Class 9
The answer key is wrong

Post Your Answer

Subject :NSO    Class : Class 6

Post Your Answer

Subject :NSO    Class : Class 9

Some species of fish can be cultured in a single fish pond. These fish do not compete for food as they have different food habits. In the following options fish are paired with their food habits. Select the incorrect match.

A Labeo rohita – Column feeder
B Catla catla – Surface feeder
C Cirrhinus mrigala – Bottom feeder
D Common carp – Surface feeder


answer is D - common carp is bottom feeder

Ans 1:

Class : Class 10
D

Ans 2:

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.

Ans 3:

Class : Class 10

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9
Seriously option c are tongs or tweezers

Ans 2:

Class : Class 8
it is d

Ans 3:

Class : Class 5
it surely is d :(

Ans 4:

Class : Class 8
BUOYANT FORCE IS PROPORTIONAL TO VOLUME DISPLACED NOT WEIGHT

Ans 5:

Class : Class 6
It is D. And it is SOF not JSS.

Ans 6:

Class : Class 6

Ans 7:

Class : Class 5
its a

Ans 8:

Class : Class 7
Seriously? The answer is D. It's a "RAP" not a "WRAP" and it is NATIONAL SCIENCE OLYMPIAD not "French, Spanish or Japanese Shing Shong" science Olympiad.

Ans 9:

Class : Class 6
answer is d

Ans 10:

Class : Class 5
ans is d

Ans 11:

Class : Class 5
D

Ans 12:

Class : Class 5
D

Ans 13:

Class : Class 5
how???

Ans 14:

Class : Class 6

Ans 15:

Class : Class 4
D

Ans 16:

Class : Class 5
How can it be A??i did DD

Ans 17:

Class : Class 4
l

Ans 18:

Class : Class 10
It is D

Ans 19: (Master Answer)

Class : Class 1

Ans 20:

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

Post Your Answer

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


Post Your Answer

Subject :NSO    Class : Class 4

Ans 1: