National Science Olympiad Forum By SOF Olympiad Trainer

User Forum

Subject :NSO    Class : Class 4

Refer to the given diagram of human digestive system and select the correct option regarding parts, X and Y.


AIn part X complete digestion of all components of food takes place.
BIf part Y is removed in a person, then he/she will not be able to digest carbohydrates at all.
CBoth X and Y pour their digestive juices in small intestine for digestion of various components of food.
DY secretes a digestive juice which is capable of digesting fats, proteins and carbohydrates present in food.


Ans 1:

Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 6
it should be opt b

Ans 3:

Class : Class 6

Ans 4:

Class : Class 7
correct option will be (B)

Ans 5:

Class : Class 6
Answer should be B because if you move towards a mirror ,your image will get bigger.

Ans 6:

Class : Class 6
B

Ans 7:

Class : Class 7
It should be b

Ans 8:

Class : Class 6
Answer is B because if you move towards a mirror ,your image will get bigger.

Ans 9:

Class : Class 6
it should be b

Ans 10:

Class : Class 6
b,its b.

Ans 11:

Class : Class 6
B

Ans 12:

Class : Class 6
Yes b is correct

Post Your Answer

Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
ans : a, in case of option c & d no change of soil fertility in case of option b cyclone do not dissolve soil or rocks in option a saline water can change the soil fertility

Ans 2:

Class : Class 7
ans : a, in case of option c & d no change of soil fertility in case of option b cyclone do not dissolve soil or rocks in option a saline water can change the soil fertility

Ans 3:

Class : Class 7
a

Post Your Answer

Subject :NSO    Class : Class 6

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
no they are not same crater is a depression caused by volcanic eruption or falling of a huge meteorite on the surface of earth

Post Your Answer

Subject :NSO    Class : Class 6

Select an incorrect reason for separating components of a mixture.

A To separate two or more different but useful components.
B To remove undesirable and useless components.
C To remove pure or harmless components.
D To obtain pure sample of a substance.


answer should B because in A,C,D they are telling about to separate useful and useless components but in B they are telling to separate useless and useless component and so Bis incorrect from othar

Ans 1:

Class : Class 6
the answer is c

Post Your Answer

Subject :NSO    Class : Class 3

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
D is the right answer.

Ans 2:

Class : Class 3
D

Ans 3:

Class : Class 4
Sun has its own lights but the other three have not their own.So the right answer should be A.

Post Your Answer

Subject :NSO    Class : Class 3

Ashish shone a torch at a ball. The shadow of the ball is projected onto a screen as shown.
What could Ashish do to get a smaller
shadow of the ball on the screen?

1. Move the ball closer to the screen.
2. Move the torch further away from the ball.
3. Move the screen further away from the ball.

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


In my opinion Aas we move the ball closer to the screen , size of image should decrease. So 1 should be correct option.

Ans 1:

Class : Class 3
C

Ans 2:

Class : Class 3
C

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

Post Your Answer