National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4

Ans 2:

Class : Class 4
Yes correct answer is C.

Ans 3:

Class : Class 2
correct ans is c

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 7
Bot STD and Local is used within a country.

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Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

Class : Class 1

B


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Subject :NSO    Class : Class 6

Read the given statements and mark the correct option.
Statement 1 : While fixing a metal rim on a wooden wheel of a cart, the size of the metal rim is kept slightly smaller than that of the wooden wheel.
Statement 2 : Metals expand on heating and contract on cooling.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of
statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true and statement 2 is false.
D Both statements 1 and 2 are false.


metal rim is kept slightly larger than the wheel not smaller

Ans 1:

Class : Class 6
charvi, statement one is true as aafter fixing on wood , matel needs to contract to get tighterhence , the size is slightly smalle than wood

Ans 2:

Class : Class 6
it can be kept both smaller and larger than wheel as metals expand on heating and contract on cooling

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

Class : Class 1

B


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Subject :NSO    Class : Class 7

Refer to the given food web.


Which of the following holds true regarding this?

AThere are four primary consumers and one secondary consumer in the given food web.
BThere are two herbivores and two carnivores in the given food web.
C Snake is serving as both primary and secondary consumer in this food web.
DIf grasshopper and beetle population is removed from this community then frog population will be affected negatively.


Ans 1: (Master Answer)

Class : Class 1

D


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