National Science Olympiad Forum By SOF Olympiad Trainer - Page 414

User Forum

Subject :NSO    Class : Class 6

Read the given paragraph where few words/phrases have been italicised. Vitamin C keeps our reproductive system healthy and is abundantly found in lemon and wheat germ. Vitamin E is present in peanut butter and oranges. Its deficiency leads to scurvy. Minerals like sodium and potassium are required for healthy bones and teeth whereas calcium maintains body's water balance. Select the correct statement regarding this.

A C should be replaced with B12 whereas E should be replaced with A.
B Positions of lemon and peanut butter should be interchanged whereas sodium and potassium should be replaced by calcium and phosphorus respectively.
C Positions of calcium and sodium should be interchanged whereas E should be replaced with D.
D Sodium and potassium are correctly mentioned hence should not be replaced but calcium should be replaced with iron.


Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
The ans is C

Ans 2:

Class : Class 5
c

Ans 3:

Class : Class 4
if a magnet broke's its two ends are changed according to the poles .in the original magnet north is in left and south is in right so all the pieces will have north in left and south in right .poles never change .so, the answer is c

Post Your Answer

Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
it should be c because the metal box is thin

Ans 2:

Class : Class 8
Yes,the answer is C.

Ans 3:

Class : Class 9
the answer is of course d..... as metal is a good conductor of heat.

Ans 4:

Class : Class 7
the heat should take less time to travel in the thin bowl so it should be option c

Ans 5:

Class : Class 7
C

Ans 6:

Class : Class 7
it is c

Ans 7:

Class : Class 8

Ans 8:

Class : Class 8

Ans 9:

Class : Class 8
Answer C , SOF own solution mentions answer C but marking is done basis option D. Please correct

Post Your Answer

Subject :NSO    Class : Class 7

Read the following statements and select the correct option.
Statement 1 : Water present in oceans and seas cannot be used directly for human consumption.
Statement 2 : Water in oceans and seas have less amount of dissolved oxygen.

ABoth statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
BBoth statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
CStatement 1 is true but statement 2 is false.
DStatement 1 is false but statement 2 is true.


Ans 1:

Class : Class 8

Ans 2:

Class : Class 7
njj

Ans 3:

Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 6

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 5
fossil fuel were formed over a long period of time because heat and pressure were applied to nitrogen

Ans 3:

Class : Class 5

Ans 4:

Class : Class 5
THE CORRECT ANSWER SHOULD BE C . IT IS BECAUSE FOSSIL FUELS WERE FORMED FROM THE REMAINS OF DEAD ANIMALS AND PLANTS BURIED UNDER THE GROUND UNDER GREAT PRESSURE AND HEAT .

Ans 5:

Class : Class 5
the correct answer is B

Ans 6:

Class : Class 7
no, the correct answer is b

Ans 7:

Class : Class 5
b is correct

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 8

Ans 3:

Class : Class 7

Ans 4:

Class : Class 6
Class : 5

Ans 5:

Class : Class 6

Post Your Answer

Subject :NSO    Class : Class 7

A furniture truck is moving along a plane road with constant velocity. An object drops from the midpoint of the ceiling inside the truck. What will be the position of object after landing on the floor?

A One cannot say without knowing the velocity of the truck.
B Exactly on the point below the mid-point of the ceiling.
C Ahead of the point exactly below the mid-point of the ceiling.
D Behind the point exactly below the mid-point of the ceiling.


Ans 1:

Class : Class 7
Answer should be d

Ans 2:

Class : Class 7
The answer should be "c" as 'ahead' means toward the direction of the moving truck, but still option B is wrong

Ans 3:

Class : Class 5

Ans 4:

Class : Class 5

Ans 5:

Class : Class 9

Ans 6:

Class : Class 7
the answer is D as the position of the truck will change and the object will be there . I got it correct

Ans 7:

Class : Class 6

Ans 8:

Class : Class 7
Va

Ans 9:

Class : Class 8
option b .......

Ans 10:

Class : Class 8

Ans 11:

Class : Class 4

Ans 12:

Class : Class 7
The answer should be D as the truck is in motion

Ans 13:

Class : Class 9

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
D

Ans 2:

Class : Class 4

Ans 3:

Class : Class 5

Ans 4:

Class : Class 5
D

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 9

Ans 3:

Class : Class 8
option c

Post Your Answer