National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
D

Ans 2:

Class : Class 5
D

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Subject :NSO    Class : Class 5

Refer to the given Venn diagram. Identify X, Y and Z and select the correct statement regarding them.


AThe process of changing Y into X is called freezing.
BThe process of changing X into Y is called sublimation.
CThe process of changing Z into X is called evaporation.
DThe process of changing Z into X is called condensation.


x can be solid and y can be gas,and this process is called sublimation ,so option b is correct,according to the explanations of solid,liquid and gas.

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
May be c

Ans 2:

Class : Class 7
It's C Bro To prevent Backward Flow Of Blood

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Subject :NSO    Class : Class 7

Mukta conducted an experiment in which two potato tubers X and Y (of equal size) were peeled and a cavity was made in each of them. X was boiled while Y was not. The cavities in the both tubers were filled with sugar solution and they were then placed in beakers containing distilled water. Select the correct statement regarding the result of this experiment.

A Level of sugar solution increased in both potato tubers X and Y due to osmosis.
B Level of sugar solution decreased in both potato tubers X and Y due to osmosis.
C Level of sugar solution increased in only potato tuber X due to osmosis.
D Level of sugar solution increased in only potato tuber Y due to osmosis.


Tricky question i thought it was A

Ans 1:

Class : Class 7
The answer is c .

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
Thaneesha,its C Ashmi Narkar

Ans 2:

Class : Class 3
Thaneesha,its C Ashmi Narkar

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
ANSWER IS A

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 7

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