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Subject :NSO    Class : Class 7

Ishaan tested the nature of a few common substances with different indicators and recorded his observations as follows :
Substance P turned methyl orange yellow.
Substance Q turned phenolphthalein colourless.
Substance R did not have any effect on blue or red litmus.
Substance S turned China rose indicator green.
P, Q, R and S could be respectively

A Lemon juice, fermented milk, salt solution and milk of magnesia.
B Sugar solution, vinegar, water and curd.
C Lime water, apple juice, sugar solution and saliva
D None of these.


Ans 1:

Class : Class 5

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 7

Read the given statements and select the correct option.
Statement 1 : Baking soda does not taste sour.
Statement 2 : Bases are sour in taste while acids are bitter in taste.

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 and statement 2 is false.
D Both statements 1 and 2 are false.


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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 4

Read the given passage carefully.
Houseflies go through (A) stages in their life cycle. The housefly lays hundreds of eggs at a time. Each egg hatches to produce a young one called a (B). The larva of a housefly is called (C). After some days, the larva becomes barrel-shaped. It is now called a (D). The pupa is covered by a (E). The cocoon breaks open in a week and a young housefly comes out.
Select the option which correctly fills any three blanks.

A a - four, c - nymph, d - cocoon
B b - larva, d - pupa, e - cocoon
C a - three, b - larva, d - pupa
D c - maggot, d - pupa, e - nymph


Ans 1:

Class : Class 4
Sreejith from kingswood Essex UK

Ans 2:

Class : Class 5

Ans 3:

Class : Class 4
B

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
no

Ans 2:

Class : Class 6
no

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
ANS-D because woodlice prefer to live in dark and damp places and the experiment was used to find out where do woodlice prefer to live

Ans 2:

Class : Class 5
D

Ans 3:

Class : Class 5
ans=D

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
B

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
A and B

Ans 2:

Class : Class 5
A

Ans 3:

Class : Class 5
Answer C as drought will not happen if there is excessive rainfall and the question is which will NOT happen

Ans 4:

Class : Class 5
A

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