National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1

C

Earth takes 24 hours for one complete rotation on its axis. If rotational speed of Earth is halved then it will complete one rotation in just double time i.e., 48 hrs. Earth completes one revolution in its orbit around Sun in about 365 days. If distance between Earth and Sun is doubled, i.e., radius of Earth's orbit is doubled then it will complete one revolution around Sun in just double time, i.e., 730 days.


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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 3

Ans 1: (Master Answer)

Class : Class 1

C

Clayey soil has large amount of clay particles in it and it has very less air space between its particles. So ot is suitable for making pots, etc.


Ans 2:

Class : Class 3

Ans 3:

Class : Class 3
C

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 6

Ans 1: (Master Answer)

Class : Class 1

A


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Subject :NSO    Class : Class 6

Ans 1: (Master Answer)

Class : Class 1

C


Ans 2: (Master Answer)

Class : Class 1

C


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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 4

Rajesh set up an experiment as shown in the figure.

He placed two cockroaches in both the jars X and Y. The cockroaches in jar X were given air and water. The cockroaches in jar Y were given air, water and food. From his experiment Rajesh was trying to find out ___.

AWhether the cockroaches need air to live
BWhether the cockroaches need food to live
CWhether the cockroaches need water to live
DWhether the cockroaches can live together in the dark


b

Ans 1: (Master Answer)

Class : Class 1

B


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