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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
Option b is correct

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7
Anything

Ans 3:

Class : Class 7

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Subject :NSO    Class : Class 7

Kriti performed the following two experiments.
I. She held a hack-saw blade with a pair of tongs and then kept the tip of the free end on the flame. She observed that the blade became red hot.
II. She dropped a shaving blade into the blue coloured copper sulphate solution. The colour of the solution changed to green.
Identify the types of changes occurring in both the experiments.

A I - Physical change, II - Chemical change
B I - Chemical change, II - Physical change
C Both I and II - Physical changes
D Both I and II - Chemical changes


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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
D

Ans 2:

Class : Class 5
troposphere

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Read the given statements and select the correct option.
Statement 1 : Our tongue feels cold when we place some glucose on it.
Statement 2 : Dissolution of glucose is an exothermic process.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true but statement 2 is false.
D Both statements 1 and 2 are false.


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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 7
pls give answer

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

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