National Science Olympiad Forum By SOF Olympiad Trainer

User Forum

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
the correct answer is option (B)

Ans 2:

Class : Class 5

Ans 3:

Class : Class 4
Option D

Ans 4:

Class : Class 4
How is the correct answer D.

Ans 5:

Class : Class 4
The correct answer should be B, not D.

Ans 6:

Class : Class 3
answer D is correct

Ans 7:

Class : Class 4
D because air can be COMPRESSED! So, lots of air can fit in a tiny container too!

Ans 8:

Class : Class 4
The correct answer is D because air can be compressed.

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

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

Ans 2:

Class : Class 7
The answer is ( d).

Ans 3:

Class : Class 6
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 4:

Class : Class 7
why!

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
The answer is B.

Ans 2:

Class : Class 3
B .

Ans 3:

Class : Class 3

Ans 4:

Class : Class 3
THE ANS IS B

Ans 5:

Class : Class 4
Wronged

Post Your Answer

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 3
IT"s d

Ans 2:

Class : Class 3
C . (1and 2 only)

Ans 3:

Class : Class 4

Ans 4:

Class : Class 4

Ans 5:

Class : Class 3
C . (1and 2 only)

Ans 6:

Class : Class 3

Ans 7:

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 8:

Class : Class 3
D

Ans 9:

Class : Class 3
C . (1and 2 only)

Post Your Answer

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


Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

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

Ans 2:

Class : Class 6
answer is B

Ans 3:

Class : Class 4
B is the answer to this question

Ans 4:

Class : Class 5

Ans 5:

Class : Class 6
Answer is B.

Ans 6:

Class : Class 1
Hello Snow White!haha

Ans 7:

Class : Class 6
B

Ans 8:

Class : Class 6
b

Ans 9:

Class : Class 5

Ans 10:

Class : Class 1
Take no offence,Snow White.

Ans 11:

Class : Class 5
Biju Pappachan ... Whom do you address as Snow White ?

Post Your Answer

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
NA

Ans 2:

Class : Class 4

Ans 3:

Class : Class 4
😓how.????

Ans 4:

Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 3

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 4

Post Your Answer