National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
Squirrels are not herbivores, but omnivores.They feed on plants and animals.

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

Ans 2:

Class : Class 3

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Subject :NSO    Class : Class 3

The given diagram represents the water cycle. Select the INCORRECT option regarding the processes that are labelled as a, b and c.


A In process 'b', the water vapours that rises, cools down to form tiny drops of water which come together to form clouds.
B In process 'a', water from rivers, lakes and seas changes to water vapours due to the warmth of sunlight.
C In process 'c', clouds formed in process 'b' become full and fall back to Earth as rain.
D None of these


Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
correct option is A because sodium, being highly reactive,reacts violently with cold water while magnesium reacts only with boiling water.Less reactive metals like zinc and iron react with steam only.Noble metals like gold and silver do not react with water.

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
2272-875= perfectly divisible by N, 1397=multiple of N, factorisation of 1397 = 11*127, as 127 is a 3 digit no., N = 127, 1+2+7=10

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is c.

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 8

Read the given statements and mark the correct option.

Statement 1 : Copper sulphate solution is a good conductor of electricity.
Statement 2 : Conduction of electricity takes place in liquids due to flow of ions.

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: (Master Answer)

Class : Class 1
The correct answer is A.

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Subject :NSO    Class : Class 6

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