National Science Olympiad Forum By SOF Olympiad Trainer

Shuvangi Das from Vivekananda mission school, haldia

Subject :NSO Class : Class 6

Which of the following is not the correct difference between weaving and knitting?

AWeaving is done by machine while knitting is done by hands only.
BWeaving uses one yarn while knitting uses two sets of yarn.
CWeaving is done for silk only while knitting is done for wool only.
DAll of these

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Ans 1:

Sai Srivardhan from Maharishi Vidya Mandir Chetpet, Chennai

Class : Class 9

no

Ans 2:

Ayan Vohra from Bhavan Vidyalaya , Chandigarh, chandigarh

Class : Class 8

it is saying NOT you little dum dums

Ans 3:

Srijan Anand from VIBGYOR HIGH, Bangalore

Class : Class 7

the right answer is b, sof too tell it in its explanation

Ans 4:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore

Class : Class 9

Yes, Srijan from VIBGYOR HIGH Bangalore, you are right SOF why you are doing this????

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Shuvangi Das from Vivekananda mission school, haldia

Subject :NSO Class : Class 6

Which of the following statements are incorrect?
I. A bag placed below the seat of a moving bus is in motion with respect to the floor of the bus.
II. While measuring length of an object using a metre scale, use the zero-mark even if the ends are worn out.
III. Blinking of eyes is an example of oscillatory motion.
IV. If a body as a whole moves around in a circular path, the motion is known as revolution.

AI, II and IV only
BI, II and III only
CII, III and IV only
DI, III and IV only

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Ans 1:

Dushyant Singh from Shree Ram Centenial School, Indore

Class : Class 9

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Ojaswi from SAINT JOHNS CONVENT SCHOOL LANSDOWNE, DELHI

Subject :NSO Class : Class 6

Observe the two shallow dishes kept in the sun carefully containing equal amount of water.

After few hours, in which dish will the water level not come down?

ADish 1
BDish 2
CIn both dishes water level will not come down.
DIn both dishes water level will come down.

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anu from Haralur, Bengaluru

Subject :NSO Class : Class 1

A rabbit was kept in a closed box with food and water, yet it died. Which of the following could be a reason for this?

AThe rabbit did not get sunlight.
BThe rabbit did not get air.
CThe rabbit did not get enough space.
DAll of these

b

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Ans 1:

Shaurya vardhan agarwal from Calcutta International School , Kolkata

Class : Class 1

b

Ans 2:

vihana from vidyashilp school, banglore

Class : Class 4

b

Ans 3:

anu from Haralur, Bengaluru

Class : Class 5

b

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anu from Haralur, Bengaluru

Subject :NSO Class : Class 1

Find the missing shape in the given figure.

ACircle
BTriangle
CSquare
DRectangle

c

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Ans 1:

from ,

Class :

Ans 2:

Shourya Pratap from Daffodils English medium school, Gwalior

Class : Class 8

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SAMARPAN DAS from Notre Dame Academy, Salakati Kokrajhar

Subject :NSO Class : Class 2

What should Amol include in his diet to develop strong muscles required for being a sportsperson?

A Fish, sweets and butter
B Fish, eggs and pulses
C Chips, fruits and oil
D Rice, jaggery and burger

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Ans 1:

SAMARPAN DAS from Notre Dame Academy, Salakati Kokrajhar

Class : Class 7

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anu from Haralur, Bengaluru

Subject :NSO Class : Class 1

Which piece will complete the ?

A
B
C
D

b

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y rahaav karthikeyan from the indian public school, TIRUCHENGODE

Subject :NSO Class : Class 9

Which of the following statements is/are incorrect?
I Centrifugation method can be used to separate butter from cream.
II Coloured component of blue ink can be separated by evaporation.
III Chromatography can be used to detect drugs in blood.
IV Camphor can be separated from salt by crystallisation.

A II only
B II and III only
C IV only
D II and IV only

I think "a" is the answer.

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VAIBHAV DINESH from Christ Nagar HSS, TRIVANDRUM

Subject :NSO Class : Class 4

Some children want to find out how overcrowding can affect the way plants grow. They put four pairs of plants, A, B, C and D, at the same place. Each pot is given the same amount of water each day. Which pair of plants should they use for their experiment?

A

B

C

D