National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
Well, the letter B is not present in the box. Hence, the honeybee can't be obtained. The correct answer is C.

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
The answer is B because turtles and lizards breathe through lungs .

Ans 2:

Class : Class 7
Can anyone tell the answer of this question with explanation?

Ans 3:

Class : Class 5

Ans 4:

Class : Class 5
Please tell the answer with solutions...

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 4
I agree with that but it is true that they have hollow bones and strong wings .

Ans 2:

Class : Class 6
Hiyansh is correct.

Ans 3:

Class : Class 6
love you hiyansh, beta

Ans 4:

Class : Class 5
Yes you are right Hiyansh the bird should have a streamlined body to cut through the air.

Ans 5:

Class : Class 5
easy

Ans 6:

Class : Class 6
I believe bird should have streamlined body to cut through air. please let me know your view.

Ans 7:

Class : Class 6
I mistakely doesn,t see it . Know I will do more practise

Ans 8:

Class : Class 5
hiyansh is correct

Ans 9:

Class : Class 5
YES, it should have a streamlined body to cut through the air.

Ans 10:

Class : Class 5
hiyansh is correct

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
Video cameras and camcorders. ... Modern electronic camcorders use digital video. Instead of recording photographic images, they use a light sensitive microchip called a charge-coupled device (CCD) to convert what the lens sees into digital (numerical) format.

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
By the help of Photon.

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Subject :NSO    Class : Class 6

Aarushi took two food samples X and Y in separate test tubes. She added 2-3 drops of Benedict’s solution in food sample X and heated it while she added two drops of copper sulphate solution and few drops of caustic soda solution in food sample Y. She observed that sample X turned brick-red while sample Y turned purple.
Which of the following is correct regarding X and Y?

A X consists of protein while Y consists of starch.
B X consists of sugar while Y consists of protein.
C X consists of starch while Y consists of protein.
D X consists of sugar while Y consists of starch.


Ans 1:

Class : Class 7
The correct answer is b

Ans 2:

Class : Class 6
The answer is actually C because starch consists of carbohydrates and sugars, but sugars is not the exact answer.

Ans 3:

Class : Class 6
answer is b

Ans 4:

Class : Class 7
Answer is c

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Subject :NSO    Class : Class 4

Rohit performed an experiment wherein he set up three test tubes as shown in the figure. Select the INCORRECT statement regarding this.


ATest tube P will have most carbon dioxide after three hours.
BTest tube Q will have least oxygen after three hours.
COrganisms in test tube R will survive for a longer time as compared to organisms in test tubes P and Q.
DNo oxygen will remain in test tube P after some time.


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Ans 1:

Class : Class 4

Ans 2:

Class : Class 5

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

Ans 2:

Class : Class 3

Ans 3:

Class : Class 3
the correct answer is d

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 7

Ans 3:

Class : Class 7

Ans 4:

Class : Class 7

Ans 5:

Class : Class 7

Ans 6:

Class : Class 9
the field line travels from north to south

Ans 7:

Class : Class 6
the answer is d because the field lines of a magnet always travle from north to south

Ans 8:

Class : Class 6
understood?

Ans 9:

Class : Class 7

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