National Science Olympiad Forum By SOF Olympiad Trainer

Nishchay Gupta from Cambridge Court World School, Jaipur

Subject :NSO Class : Class 4

Vibhuti took four different types of container and poured water in them as shown in the picture. Arrange the containers in order of the amount of water contained in them and select the correct option.

AW = Y > X = Z
BW = Y < X = Z
CW > Y = X > Z
DW = X < Y = Z

ans B is correct

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Ans 1:

XXX from SVM, Bangalore

Class : Class 5

please explain!!

Ans 2:

PAANINIDHEE CHATURVEDI from Delhi Public School, Noida

Class : Class 4

Plz explain somebody I cannot understand it

Ans 3:

mishika tripathi from DPS, Gurugram, Haryana

Class : Class 5

answeris a

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Ava from trio, bangalore

Subject :NSO Class : Class 3

Ravi grouped three birds together as shown in the box. All these are ________ birds.

ASwimming
BFlying
CFlightless
DPerching

Ostrich, Penguin and Kiwi are flightless birds

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Ans 1:

Avik Arya from Trileaves Global school , Chennai

Class : Class 3

C

Ans 2:

Shruti from ,

Class : Class 1

C

Ans 3:

mayurav from ryan INTERNATIONALSCHOOL, gurugram

Class : Class 3

c

Ans 4:

Achyut Rai from THE KHAITAN SCHOOL, NOIDA

Class : Class 7

C

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Aniruddh M Kaushik from National Hill View Public School, Bengaluru

Subject :NSO Class : Class 6

Ram and Shyam have performed the experiment to separate sugar from water, as shown in the figures.

Which of the following statements are incorrect?
1. Method 1 is slower than method 2.
2. Method 2 leads to the decomposition of sugar to carbon.
3. Method 1 is more appropriate than method 2.
4. Method 2 is slow but pure sugar is obtained without getting decomposed.

A2, 3
B1, 2, 3
C3, 4
D2, 4

Very good and tricky question. Will be waiting for questions like this.

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Ans 1:

Aniruddh M Kaushik from National Hill View Public School, Bengaluru

Class : Class 6

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A S Neeraj from K V 2, Chennai

Subject :NSO Class : Class 6

Refer to the given pie charts based on waste segregation methods X and Y and select the correct option.

A Method Y is more environment conscious because polythene bags are disposed with kitchen waste.
B Method X is more environment conscious because polythene bags are disposed off separately.
C Method Y is more environment conscious because newspapers are not generated.
D None of these

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Ans 1:

Arya Kiran from PSBB KK NAGAR, Chennai

Class : Class 9

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Inamul from Springs, Nilambur

Subject :NSO Class : Class 8

Three different positions of a dice are shown here. Which symbol will be on the face opposite to the face with symbol*?

A▢
B∆
CⒸ
D+

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Ans 1:

Shourya Ganesh from The Green Acres Academy, Mumbai

Class : Class 9

True, any one of them could be the correct answer, please fix

Ans 2:

N ANIK from Ahlcon Public school, New Delhi

Class : Class 9

For this I think B is the correct answer please check

Ans 3:

Shaurya Verma from NPS HSR, Bangalore

Class : Class 9

As per the solution, both B and C are correct, then why choosing B is wrong.

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Sameer Anand from ST MICHAEL'S HIGH SCHOOL, PATNA

Subject :NSO Class : Class 5

Find the correct mirror image of Fig. (X), if mirror is placed along MN.

A

B

C

D

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Ans 1:

Avantika Raj from Delhi Public School, Bengaluru

Class : Class 9

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Suraj Gupta from Suncity World School, Gurugram

Subject :NSO Class : Class 4

Select the correct match out of the following.

AFish Contains starch
BRice Energy giving food
COlive oil Repair the tissues
DCitrus fruits Help in blood formation

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Adarsh from DPS, Raipur

Class : Class 5

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Shaurya from Kothari International School, noida

Subject :NSO Class : Class 7

Saurashtra, a land with history of severe water scarcity, hostile climate, and rocky land is now self sufficient in water availability due to the efforts of _____ who taught the local people the importance of rainwater harvesting.

A Rajendra Singh
B Shamjibhai J. Antala
C Amla Ruia
D Aabid Surti

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Ans 1:

Saidutta Sidhesh S M from RN PODAR, Mumbai

Class : Class 10

Ans 2:

Arhan Shri Gupta from Mayoor Private School, Abu dhabi

Class : Class 7

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Devabhrith from Delhi Public School Electronic City Bangalore, Bengaluru

Subject :NSO Class : Class 6

Four identical wet towels were hung out on clothesline in different manner to dry under different conditions.

Arrange them in order, beginning with the towel that would take the shortest time to dry.

A P, Q, R, S
B P, R, Q, S
C R, P, Q, S
D S, Q, R, P

D correct because D correct

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Ans 1:

Devabhrith from Delhi Public School Electronic City Bangalore, Bengaluru

Class : Class 8

D correct cause D correct

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Jagadarsh Meda from Sri Vidyanjali, Hyderabad

Subject :NSO Class : Class 8

The given diagram shows a girl standing at a position X in front of a plane mirror, at a distance of x m from the mirror. When she moves y m away to a new position Y, the distance between the girl and her image increases by 8 m.
What is the value of y?

A2 m
B4 m
C8 m
DData insufficient

B

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Vineet Agarwal from DPS, Gurgaon

Class : Class 5

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