National Science Olympiad Forum By SOF Olympiad Trainer - Page 525

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9

Ans 2:

Class : Class 7
should be D

Ans 3:

Class : Class 10
the correct answer should be option c. i have verified this from the NSO olympiad book.

Ans 4:

Class : Class 8
should be d

Ans 5:

Class : Class 8
ans c

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9

Ans 2:

Class : Class 8
Even I got confused.........@(* ! *)@

Ans 3:

Class : Class 6
Ans is C because for germination a seed needs air, warmth and water. The seed doesn't needs sunlight.

Ans 4:

Class : Class 9

Ans 5:

Class : Class 5

Ans 6:

Class : Class 6
SEEDS NEED SUNLIGHT!!!!!!!!!!!!!!!!!!!!!!

Ans 7:

Class : Class 5

Ans 8:

Class : Class 5

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
yeah even I got 5/5

Ans 2:

Class : Class 6
5/5 to me.

Ans 3:

Class : Class 9
CORRECT ANSWER IS 'D' BECAUSE THEY ALL ARE OBTAINED FROM THE ROOTS OF THE PLANTS

Ans 4:

Class : Class 6

Ans 5:

Class : Class 6
d is the answer

Ans 6:

Class : Class 6
Easy 5/5 right?

Ans 7:

Class : Class 6
D is the appropriate answer

Ans 8:

Class : Class 2
Answer no. D is correct dear girl

Ans 9:

Class : Class 6
D is the correct answer

Ans 10:

Class : Class 6

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 8

A man fires a gun 150 m from a cliff. A second man who is standing 300 m further away from the cliff hears the gun 1 second after he sees the flash. The second man will hear the echo from the cliff



A 1 second after seeing the flash
B 2 seconds after hearing the gun
C 2 seconds after seeing the flash
D 4 seconds after hearing the gun.


The right answer is 3 seconds after seeing the flash but that is not even there in the option. Please check

Ans 1:

Class : Class 6

Ans 2:

Class : Class 9
Option C

Ans 3:

Class : Class 5
It was 1 second after hearing the gun.

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
The most abundant element in the earth's crust is oxygen, making up 46.6% of the earth's mass. Silicon is the second most abundant element (27.7%), followed by aluminum (8.1%), iron (5.0%), calcium (3.6%), sodium (2.8%), potassium (2.6%). and magnesium (2.1%).

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9

Ans 2:

Class : Class 8
The answer is - A (Proteins)

Ans 3:

Class : Class 5
Yes protiens plays a cruical role in our diet

Ans 4:

Class : Class 5
A.Proteins

Ans 5:

Class : Class 4
you stupid

Ans 6:

Class : Class 8
but there is butter.butter gives us protein

Ans 7:

Class : Class 5
A.Proteins

Ans 8:

Class : Class 5
ANS IS A NO ERRORYOU MEAN ANYTHING IS WRONG SOMETHINGS ARE RIGHTOK

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Subject :NSO    Class : Class 8

Read the given statements and select the correct option.
Statement 1 : When Ravi saw a film on space wars, he didn’t hear any explosions.
Statement 2 : Sound travels slowest through gases.

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 Statement 1 is false but statement 2 is true.


i cant understand the meaning of statement 1

Ans 1:

Class : Class 8

Ans 2:

Class : Class 9
it is b

Ans 3:

Class : Class 8

Ans 4:

Class : Class 5
(a) There are many sounds in space war films.(b) Sound travels slowest in air.

Ans 5:

Class : Class 9
how does sound travel the slowest in gas ???

Ans 6:

Class : Class 5
If you have seen a film on space wars, you understand that it is D.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 8
Yes , the answer is A because bear and rat both are omnivores and rest are herbivores .

Ans 2:

Class : Class 3
I don’t believe it noooooooooooo

Ans 3:

Class : Class 4

Ans 4:

Class : Class 3
The answer is A

Ans 5:

Class : Class 6
Rat and bear both are omnivore means they eat both plants and other animals . Hence, option (A) is the correct answer.

Ans 6:

Class : Class 3
The answer is A

Ans 7:

Class : Class 6

Ans 8:

Class : Class 3
a is the answer

Ans 9:

Class : Class 4
Answer is A because rat eats eggs of other animals and plants. Rest are herbivores.

Ans 10:

Class : Class 3
The answer is A

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Subject :NSO    Class : Class 6
hi

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