National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
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 5
d

Ans 3:

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 4:

Class : Class 5
Answer is D

Ans 5:

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

Ans 6:

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 7:

Class : Class 2
The correct answer is a

Ans 8:

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

Ans 9:

Class : Class 5
the answer a

Ans 10:

Class : Class 4

Ans 11:

Class : Class 5
c

Ans 12:

Class : Class 4
Pls explain

Ans 13:

Class : Class 2
Aaaa

Ans 14:

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

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.

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Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

Class : Class 3

Ans 3:

Class : Class 2
D is the answer

Ans 4:

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 5:

Class : Class 7
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 6:

Class : Class 6
large intestine

Ans 7:

Class : Class 4

Ans 8:

Class : Class 4

Ans 9:

Class : Class 5

Ans 10:

Class : Class 4
Yes, I also think it is Option D) Large Intestine

Ans 11:

Class : Class 5
4 large interstine

Ans 12:

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

Ans 13:

Class : Class 4
the answer is D large intestine

Ans 14:

Class : Class 6
It is D large intestine

Ans 15:

Class : Class 3
It should be D, large intestine

Ans 16:

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

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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
answer given is wrong

Ans 2:

Class : Class 9
the question is wrong.

Ans 3:

Class : Class 9

Ans 4:

Class : Class 8
ALL THE OPTIONS ARE INCORRECT

Ans 5:

Class : Class 9
all the options seem inapropriate for this

Ans 6:

Class : Class 9
this is wrong

Ans 7:

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

Ans 8:

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 9:

Class : Class 9
GRAVITATIONAL CAN NOT INCREASE WITH ALTITUDE

Ans 10:

Class : Class 9
correct option is not given

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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

Ans 3:

Class : Class 7
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 .

Ans 4:

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

Ans 5: (Master Answer)

Class : Class 1
The correct answer is B.

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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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