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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
ans b

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Subject :NSO    Class : Class 5

Radha carried out an experiment to find out how fast water can pass through three different types of soil. She set up the experiment as shown below. Using a stop watch, she measured the time taken for 20mL of water to pass through each type of soil.

She recorded the results as shown below:

Identify soils X, Y and Z and select the correct option regarding them.

AY type of soil is usually found in deserts.
BPotters use X type of soil to make pots.
CSoil Z contains nutrients and humus in right proportion which makes it suitable for growth of most plants.
DAll of these


D

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Class : Class 5
ans d

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
This question ****s

Ans 2:

Class : Class 4
D is the best answer

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Subject :NSO    Class : Class 7

Refer to the given figure showing three parent species, X, Y and Z (in plot I) and their respective seedlings after dispersal (in plot II).

Select the incorrect statement regarding species X, Y and Z.
(i) X could be pea plant in which fruits burst open forcibly after drying.
(ii) Y could be Xanthium in which seeds are hooked i.e., have spines.
(iii) Z could be Acer in which fruits and seeds have wings or hair like structure.
(iv) X could be coconut, Y could be lotus and Z could be Calotropis.

A (iii) and (iv) only
B (i) and (ii) only
C (iii) only
D (iv) only


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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 7

Kunal took few iron turnings and mixed them well with sulphur powder. He could separate the iron turnings with the help of a magnet. He heated the mixture for some time and tried to separate the iron turnings with the magnet but he could not. Why?

A On heating, a chemical change takes place and a new compound is formed.
B On heating, iron becomes non-magnetic hence, it is not attracted by magnet.
C On heating, a physical change takes place hence iron and sulphur gets mixed up.
D On heating, iron evaporates and only sulphur is left behind.


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Class : Class 5

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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

Class : Class 4
4 answer is C

Ans 3:

Class : Class 5
The awnser is D

Ans 4:

Class : Class 4

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