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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 5

Deep inside the Earth there is hot molten rock called 'P'. This comes up and collects in a chamber. When 'P' erupts through the Earth's surface, it is called 'Q'. On cooling, it becomes 'R'. The hollow top of the volcano that is shaped like a bowl, is called a 'S'.
Which of the following is incorrect regarding the above passage?

A 'Q' is magma and 'P' is lava. When magma is below the Earth's surface it is called lava.
B 'R' are igneous rocks. The first rocks to form on the Earth were igneous rocks.
C 'S' is a vent, an opening or a crack in the crust of the Earth.
D Both A and C.


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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

Refer to the given figure indicating three types of forces, X, Y and Z and select the incorrect option.


AAn astronaut floats in space due to absence of force Z.
BWhen we use pulley to lift a bucket of water from well (pulling vertically downward) then pulley makes X in opposite direction of Z making it easier to lift the bucket.
CForce Y is responsible for wearing and tearing of tyres of vehicles.
DWe can walk only on those surfaces which offer no Y.


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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 2
ANS IS BOTH B AND C

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Subject :NSO    Class : Class 5

Ritu took two bimetallic strips, I and II (of equal size, length and breadth) made up of metals P and Q; and Q and R, respectively as shown here.
She subjected each bimetallic strip to heating for same time period. The given diagram shows her experiment.

Which of the following cannot be inferred from the above experiment?

AMetal P expands more as compared to metals Q and R on heating for the same time period.
BMetal R contracts more as compared to metals P and Q on heating for the same time period.
CThe ascending order of expansion of these metals when subjected to heating is R < Q < P.
DBoth B and C


Ans 1:

Class : Class 6

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
D

Ans 2:

Class : Class 3
C

Ans 3:

Class : Class 3
C

Ans 4:

Class : Class 4
D should be the correct answer as Root appears before shoot.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
D

Ans 2:

Class : Class 4
D - all of these

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
B

Ans 2:

Class : Class 4
B. R and S only.

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