National Science Olympiad Forum By SOF Olympiad Trainer - Page 442

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
i understood

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 8
yeah

Ans 2:

Class : Class 8
C

Ans 3:

Class : Class 4

Ans 4:

Class : Class 4
C is incorrect, small intestine is not only for absorption, it also aids in digestion.

Ans 5:

Class : Class 3
A

Ans 6:

Class : Class 4
c

Ans 7:

Class : Class 8
C

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
answer D is correct

Ans 2:

Class : Class 4
Option D

Ans 3:

Class : Class 8

Ans 4:

Class : Class 7
The correct answer is D because air can be compressed.

Ans 5:

Class : Class 3
b is correct answer

Ans 6:

Class : Class 7
the correct answer is option (B)

Ans 7:

Class : Class 7
D because air can be COMPRESSED! So, lots of air can fit in a tiny container too!

Ans 8:

Class : Class 7
The correct answer should be B, not D.

Ans 9:

Class : Class 7
How is the correct answer D.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 10
The answer is ( d).

Ans 2:

Class : Class 6
iron is the correct answer as is will make the best electromagnet whereas steel is an alloy of iron and carbon.

Ans 3:

Class : Class 10
why!

Ans 4:

Class : Class 4
Technically, the copper experiment will also work and although it will form a weak magnet, it will be a magnet nonetheless. The question prompt asks to identify the experiments which will work and that is both A and will be the correct options

Ans 5:

Class : Class 6
how?????????

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 8
The answer is B.

Ans 2:

Class : Class 6
B .

Ans 3:

Class : Class 3

Ans 4:

Class : Class 3
THE ANS IS B

Ans 5:

Class : Class 4
Wronged

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Subject :NSO    Class : Class 3

Two containers X and Y, of the same size and thickness, contained 1000 mL and 600 mL of water, respectively. Both were heated over two separate flames till the water in them boiled.
If the water used in both containers took 10 minutes to reach boiling point, what conclusions can be made?
1. The flame used for container X is stronger than that used for container Y.
2. Container X is better conductor of heat than container Y.
3. The water in container X was colder than that in container Y at the beginning of the experiment.

A 1 only
B 2 only
C 1 and 2 only
D 1, 2 and 3


Ans 1:

Class : Class 7

Ans 2:

Class : Class 6
C . (1and 2 only)

Ans 3:

Class : Class 4
Iamnot able to see the picture so i will not able to answer

Ans 4:

Class : Class 4
idiots it's C!!!

Ans 5:

Class : Class 5

Ans 6:

Class : Class 4

Ans 7:

Class : Class 7

Ans 8:

Class : Class 3
D

Ans 9:

Class : Class 3
the correct answer will be c as if the water will be colder in x so it will boil more late

Ans 10:

Class : Class 5
IT"s d

Ans 11:

Class : Class 6
C . (1and 2 only)

Ans 12:

Class : Class 6
C . (1and 2 only)

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Subject :NSO    Class : Class 3

Two containers X and Y, of the same size and thickness, contained 1000 mL and 600 mL of water, respectively. Both were heated over two separate flames till the water in them boiled.
If the water used in both containers took 10 minutes to reach boiling point, what conclusions can be made?
1. The flame used for container X is stronger than that used for container Y.
2. Container X is better conductor of heat than container Y.
3. The water in container X was colder than that in container Y at the beginning of the experiment.

A 1 only
B 2 only
C 1 and 2 only
D 1, 2 and 3


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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9

Ans 2:

Class : Class 1
Take no offence,Snow White.

Ans 3:

Class : Class 8
Biju Pappachan ... Whom do you address as Snow White ?

Ans 4:

Class : Class 8
B because it means ( here ) that orbit will be bigger as a planet is away from sun and, longer distance means long revolution

Ans 5:

Class : Class 1
Hello Snow White!haha

Ans 6:

Class : Class 7
Sorry sorry the Mars will take more time who ever isReading my post

Ans 7:

Class : Class 7
Answer is B . If we imagine that the planet X is mercuryAnd planet Y is Mars who will take more time it will be Mercury because it is near to the sun and will revoluteFaster than Mars

Ans 8:

Class : Class 6
B

Ans 9:

Class : Class 8
answer is B

Ans 10:

Class : Class 7
b

Ans 11:

Class : Class 8

Ans 12:

Class : Class 6
Answer is B.

Ans 13:

Class : Class 4

Ans 14:

Class : Class 7
B is the answer to this question

Ans 15:

Class : Class 1
Any ways,can anyone explain??

Ans 16:

Class : Class 6
Who is this Snow White, man!

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Subject :NSO    Class : Class 4

Avinash grouped plants on the basis of their habitats. By mistake, he placed one wrong plant in each group. Identify the odd member of each group and select the correct option.
Group I : Duckweed, Hydrilla, Opuntia
Group II : Banyan, Mango, Acacia
Group III : Barrel cactus, Joshua tree, Vallisneria

A Duckweed in group I is incorrectly placed and should be replaced with arrowhead plant.
B Mango in group II should be interchanged with Joshua tree in group III.
C Opuntia in group I should be interchanged with Vallisneria in group III.
D Banyan in group II is incorrectly placed and should be replaced with gulmohar.


Ans 1:

Class : Class 4

Ans 2:

Class : Class 4

Ans 3:

Class : Class 8
😓how.????

Ans 4:

Class : Class 8
NA

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Subject :NSO    Class : Class 3

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