National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7

Ans 2:

Class : Class 8
option c ......

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 7

Read the following statements.
(A) In India, rain is mainly brought by two kinds of humidity-laden winds, _____ and _____.
(B) Scientists who study and predict weather are known as _____.
(C) The climate in Kerala is _____ and _____.
Select the option which correctly fills the blanks in any two of these statements.

A (B) Geologists; (C) Hot, Dry
B (A) South-West monsoon, North-East monsoon; (C) Hot, Wet
C (A) South-East monsoon, North-West monsoon; (B) Meteorologists
D (A) South-East monsoon, North-West monsoon; (B) Geologists


Ans 1:

Class : Class 7
b

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
(C)

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 6

Ram and Shyam have performed the experiment to separate sugar from water, as shown in the figures.

Which of the following statements are incorrect?
I. Method 1 is slower than method 2.
II. Method 2 leads to the decomposition of sugar to carbon.
III. Method 1 is more appropriate than method 2.
IV. Method 2 is slow but pure sugar is obtained without getting decomposed.

A II and III Only
B I, II and III Only
C III and IV Only
D II and IV Only


What is the difference between these two methods? Apply some brain...

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
R can be silk p can be polyester.

Ans 2:

Class : Class 3
c

Ans 3:

Class : Class 3
c

Ans 4:

Class : Class 3
C

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Subject :NSO    Class : Class 6

Read the given paragraph where few words/phrases have been italicised. Vitamin C keeps our reproductive system healthy and is abundantly found in lemon and wheat germ. Vitamin E is present in peanut butter and oranges. Its deficiency leads to scurvy. Minerals like sodium and potassium are required for healthy bones and teeth whereas calcium maintains body's water balance. Select the correct statement regarding this.

A C should be replaced with B12 whereas E should be replaced with A.
B Positions of lemon and peanut butter should be interchanged whereas sodium and potassium should be replaced by calcium and phosphorus respectively.
C Positions of calcium and sodium should be interchanged whereas E should be replaced with D.
D Sodium and potassium are correctly mentioned hence should not be replaced but calcium should be replaced with iron.


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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
The ans is C

Ans 2:

Class : Class 5
c

Ans 3:

Class : Class 4
if a magnet broke's its two ends are changed according to the poles .in the original magnet north is in left and south is in right so all the pieces will have north in left and south in right .poles never change .so, the answer is c

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
the answer is of course d..... as metal is a good conductor of heat.

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