National Science Olympiad Forum By SOF Olympiad Trainer - Page 551

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 7
R. Fragile S. Allows light to pass T. Flexiblecorrect answer: option 'b'

Ans 2: (Master Answer)

Class : Class 1
The correct answer is B.

Ans 3:

Class : Class 4
yes

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Ans is C because bomb has chemicals and whan a bomb bursts, it creates sound energy, and raditions, which is light energy.

Ans 2:

Class : Class 5
Because a tv converts electrical energy and not chemical energy.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
class - 3

Ans 2:

Class : Class 4

Ans 3:

Class : Class 4

Ans 4:

Class : Class 7

Ans 5:

Class : Class 5

Ans 6:

Class : Class 4
Yes correct the answer is B

Ans 7:

Class : Class 6

Ans 8:

Class : Class 3
the correct answer is B

Ans 9: (Master Answer)

Class : Class 1
The correct answer is B.

Ans 10:

Class : Class 8
Yes , the correct answer is B .

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Subject :NSO    Class : Class 6

Refer to the given paragraph.
The two main types of root are X and Y. X roots are mostly found in plants having leaves with reticulate venation, while Y roots are mostly found in plants having leaves with parallel venation.
Select the incorrect statement regarding X and Y.

A Radish, turnip and carrot are modifications of X.
B X is found in gram while Y is found in barley.
C X spreads horizontally hence cannot provide strong anchorage whereas Y penetrates very deep into the soil hence provides strong anchorage.
D In Y, primary root is short-lived while X has persistent primary root.


Ans 1:

Class : Class 10

Ans 2:

Class : Class 10
shut up ! stop giving weird question where we gunna find da answers weirdos

Ans 3:

Class : Class 9
question very difficult especially for only 20 mins test time

Ans 4:

Class : Class 7

Ans 5:

Class : Class 8
so bad and lengthy questions ??!!

Ans 6:

Class : Class 8
Usually leaves having reticulate venation have tap roots and leaves having parallel venation have fibrous root, hence the answer is c because tap roots provide better anchorage than fibrous root

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
C-It remains constant throughout.

Ans 2:

Class : Class 10
C- It must remain constant through out.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 9
Answer: AExplanation: Food is masticated with teeth and partially digested by the action salivary juices in the mouth (P).

Ans 2:

Class : Class 3

Ans 3:

Class : Class 3

Ans 4:

Class : Class 5
The answer is A

Ans 5:

Class : Class 3
The answer is a

Ans 6: (Master Answer)

Class : Class 1
The correct answer is A.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7

Ans 2:

Class : Class 8
Arnav opening of bud is a chemical change because then it turns into flower and is irreversible

Ans 3:

Class : Class 6

Ans 4:

Class : Class 2

Ans 5:

Class : Class 9
uhhhhhhhhhhh how is opening of a bud a chemical change? the chemical compound does not change still so answer should be only 4 i think

Ans 6:

Class : Class 9

Ans 7:

Class : Class 6

Ans 8:

Class : Class 7

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
Both of them will fall because box II will come down due to gravity and box I will become heavier

Ans 2:

Class : Class 7
c because of gravity 1 will fall. imbalance and so other will also fall

Ans 3:

Class : Class 9
Both blocks will fall because there will be nothing to hold them.It is like a sea-saw balanced in the middle.If one person gets up,the other will go down.

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Subject :NSO    Class : Class 7

Kanav took two test tubes marked as I and II. In test tube I, he put calcium carbonate and hydrochloric acid while in test tube II, he put zinc granules and hydrochloric acid. He passed the gas coming out from both the test tubes in lime water. What would be his observation?


A The gas coming out from test tube I turned lime water milky.
B The gas coming out from test tube II turned lime water milky.
C The gases coming out from both the test tubes turned lime water milky.
D None of these.


it could have been simpler

Ans 1:

Class : Class 8
A is the answer

Ans 2:

Class : Class 8
If it could have been simpler, then you don't have to study for these Olympiads as its too difficult. And I don't think it is very difficult and the option is (A) i think.

Ans 3:

Class : Class 7

Ans 4:

Class : Class 8
they should have said correct statements. So the answer should be A

Ans 5:

Class : Class 4
Answer should be A as zinc granules don’t react and produce co2 gas so it’s simple and answer should be A

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Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

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