National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 6

Read the given statements and state (T) for true and (F) for false ones.
I. Chalk powder mixed in wheat flour can be separated by sieving.
II. The solubility of a solute at a particular temperature cannot be increased by stirring.
III. The process of pouring out the clear upper liquid without disturbing the sediment is called sedimentation.
IV. Muddy water can be cleared faster using the method of loading.
V. Separating funnel is used to separate two miscible liquids.

  I II III IV V
A (F) (T) (T) (F) (F)
B (T) (T) (F) (T) (F)
C (F) (T) (F) (T) (F)
D (F) (T) (F) (F) (T)


This is wrong. The internet says that wheat flour can be separated from chalk powder by sieving. So answer will be B

Ans 1:

Class : Class 3
Answer not given

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 6

Ans 1: (Master Answer)

Class : Class 1

C

1 kilometer = 10^3 meter

1 micrometer = 10^(-6) meter

1 millimeter = 10^(-3) meter

1 centimeter = 10^(-2) meter


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Subject :NSO    Class : Class 6

Amit categorised plants on the basis of venation in their leaves. He made three groups of three members each. By mistake, he placed one wrong plant in each group. Identify the wrong member and select the correct option.
Group I : Hibiscus, Castor, Fan palm
Group II : Bamboo, Banyan, Peepal
Group III : Banana, Petunia, Grass

A Fan palm of group I should be interchanged with bamboo of group II.
B Petunia of group III should be replaced with neem.
C Fan palm of group I should be interchanged with Petunia of group III.
D Peepal of group II should be replaced with mint.


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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 3

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