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 9

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Class : Class 9
i have marked d but you are shwing that correct answer is c but according to solution answer is d

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 4

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Class : Class 4
C is the correct answer

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Subject :NSO    Class : Class 2

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Class : Class 3
No

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Subject :NSO    Class : Class 5

Monty fully filled a glass bottle with water, put a stopper on it and placed it upright in the freezer overnight. When he looked at it in the morning, the stopper was out of the bottle and a column of ice had emerged through the opening of the bottle.
Which one of the following is the best explanation for what Monty had observed?

A The bottle had contracted when it was put in the freezer and the water could no longer fit into it.
B Extra water condensed from the air in the freezer and then froze to form the column of ice.
C The bottle and stopper had contracted, allowing the water to pour out and form the ice column.
D The volume of water had increased when the water froze, forcing the stopper out of the bottle and forming the column of ice.


Ans 1:

Class : Class 6

Ans 2:

Class : Class 5
Very tricky question. Good job

Ans 3:

Class : Class 3
NOT ABLE TO UNDERSTAND THE SENTENCES

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Class : Class 7

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Subject :NSO    Class : Class 4

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Class : Class 4
A. is the correct answer.(mercury.)

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Subject :NSO    Class : Class 4

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Class : Class 4
Answer is c as protein is body building food, rice is rich in carbohydrates

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
B

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