National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 8
ASHMI , you are confusing me and others also I think . Firstly you said - please explain then you said the answer is A then in the experiment in first line you said the answer is D but in the last line you wrote the answer is A !!!!! C an you explain what is the correct answer in your eyes A or D ?

Ans 2:

Class : Class 4
Pls explain

Ans 3:

Class : Class 2
Aaaa

Ans 4:

Class : Class 5
d

Ans 5:

Class : Class 5
it is D because they are going down a slope the more the weight the faster the car goes down right?

Ans 6:

Class : Class 5
c

Ans 7:

Class : Class 5

Ans 8:

Class : Class 4
Well,Snow White ,from Paris, I think ASHMI is saying that the answer is 'D'.

Ans 9:

Class : Class 2
The correct answer is a

Ans 10:

Class : Class 5
the answer a

Ans 11:

Class : Class 7
d because the car will go faster with more wieght

Ans 12:

Class : Class 6
Answer is D

Ans 13:

Class : Class 5
OK YOU ARE TELLING THAT AIR BUT E.G., STEEL BALL VS SPONGE BALL IN SLOPE SEE BELLIONS EXPERIMENTS, HE WILL PROVE THAT ON 76TH EXPERIMENT

Ans 14:

Class : Class 6
This is wrong logic. All the cars will go down with same speed. The acceleration is same for all objects. Only when there is significant air resistance will the speeds be different. E.g., bullet vs. a feather. Look for Galileo's experiment. In this question, the air resistance will not be any different across the 4 choices.

Ans 15:

Class : Class 4
Answer is D as gravitational force acts quicker on the heavier object.You can try an experiment related to this answer.Throw a plastic bottle cap and metal bottle cap OR a sheet of paper and a glue bottle OR any two such things so that one is heavy and the other one is light. Then throw them from the same height and at the same time. Then you'll get the answer i.e. the heavier thing fell before the lighter thing. I tried this experiment after giving my first opinion (OPTION A-you can see it) and it gave me good results.

Ans 16:

Class : Class 4
Answer should be A car with least no.of people will go faster right

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
Yes, I also think it is Option D) Large Intestine

Ans 2:

Class : Class 4
4The answer will be D It is the correct answer

Ans 3:

Class : Class 3

Ans 4:

Class : Class 5
4 large interstine

Ans 5:

Class : Class 6
It is D large intestine

Ans 6:

Class : Class 8
Harishchandra, in option C the figure is of ' Small Intestine ' and in option D the figure is of ' Large Intestine' . So the answer is D

Ans 7:

Class : Class 4
ANSWER IS D BECAUSE ABSORPTION OF WATER FROM THE FOOD IS DONE BY LARGE INTESTINE

Ans 8:

Class : Class 4

Ans 9:

Class : Class 3
It should be D, large intestine

Ans 10:

Class : Class 2
D is the answer

Ans 11:

Class : Class 5
C AND D ALSO WILL ABSORB WATER SO C AND D SEE CORRECT IT SOF

Ans 12:

Class : Class 4

Ans 13:

Class : Class 4
Harishchandra, see, clearly, the pic in option 'C' is small intestine.The pic in option 'D' is of large intestine.The answer is option'D'

Ans 14:

Class : Class 6
large intestine

Ans 15:

Class : Class 4
the answer is D large intestine

Ans 16:

Class : Class 5

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
It is reversible and chemical because salt has sodium and chlorine and water has hydrogen and oxygen so different item formed It is reversible because you can separate them by evaporating the water

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
all the options seem inapropriate for this

Ans 2:

Class : Class 10
Gravitational force decreases when altitude increases as gravity is inversely proportional to square of distance that separates earth and the body

Ans 3:

Class : Class 9

Ans 4:

Class : Class 9
correct option is not given

Ans 5:

Class : Class 9
this is wrong

Ans 6:

Class : Class 9
How can gravitational force increase with altitude?

Ans 7:

Class : Class 9
the question is wrong.

Ans 8:

Class : Class 9
answer given is wrong

Ans 9:

Class : Class 8
ALL THE OPTIONS ARE INCORRECT

Ans 10:

Class : Class 9
GRAVITATIONAL CAN NOT INCREASE WITH ALTITUDE

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 5
Option c

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
C

Ans 2:

Class : Class 5
C

Ans 3:

Class : Class 5
C

Ans 4:

Class : Class 5
C

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
The correct answer is B

Ans 2:

Class : Class 4
I dont know which one is correct C or B

Ans 3:

Class : Class 4

Ans 4: (Master Answer)

Class : Class 1
The correct answer is B.

Ans 5:

Class : Class 8
The materials used to make given objects are wool , leather , cotton and silk . Out of these , only leather is hidden..... Hence , option C is correct .

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Answer will be C, not D

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Subject :NSO    Class : Class 6

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