National Science Olympiad Forum By SOF Olympiad Trainer

Niranjhan Rajeshkumar from Deens Academy, Whitefield, Bengaluru

Subject :NSO Class : Class 2

A word is encircled in each option which does NOT belong to the group.
In which option INCORRECT word is encircled for the group?

A Stamps, Postcard, Letter box
B Newspaper, Radio, Television,
C Telephone, E-mail, Postcard
D Telegram, Television, Parcel

View All Answers (3)

Ans 1:

Shaarav Dutt from Delhi Public School, NOIDA

Class : Class 2

Ans 2:

Sourav Jena from ODM public school , BHUBANESWAR

Class : Class 4

D

Ans 3:

Aarav nikalji from Apeejay school nerul , Navi Mumbai

Class : Class 4

yes

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YASH SAH from DELHI PUBLIC SCHOOL MIS DOHA, Doha

Subject :NSO Class : Class 6

Refer to the given Venn diagram and select the correct option regarding X and Y.

AX could be DDT whereas Y could be bones.
BX could be human faeces whereas Y could be scissors.
CX could be rotten vegetables whereas Y could be cardboard.
DX could be cowdung whereas Y could be dried leaves.

View All Answers (5)

Ans 1:

Ashwak from Cambridge, Jalandhar

Class : Class 9

I think it is because Y

Ans 2:

Ashwak from Cambridge, Jalandhar

Class : Class 9

Sorry for the incomplete answer I think it's because Y is not in the biodegradable So it should be non biodegradable and only scissors are non biodegradable

Ans 3:

Aarsh Kumar Singh from Kendriya Vidyalaya , Mumbai

Class : Class 6

How could scissors be a waste product?

Ans 4:

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

Class : Class 9

That's what, how can scissors be waste product? Aarsh is right

Ans 5:

Krithi Manasvini from Alwin Memorial Public School, Chennai

Class : Class 7

I think Scissors can be a waste product if the get rusted

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AARNA Kapse from The swaminarayan school, Nagpur

Subject :NSO Class : Class 2

What do the given sign boards indicate?

(1) School ahead
(2) Do not honk
(3) Cross road at zebra crossing
(4) Drive slow

A Only 1
B 2 and 3
C 1 and 4
D Only 2

View All Answers (4)

Ans 1:

Karthik from Euro, Bengaluru

Class : Class 7

Ans 2:

Seeraj Arora from DPS Noida, Noida

Class : Class 5

Answer should be "School Ahead"

Ans 3:

Niranjhan Rajeshkumar from Deens Academy, Whitefield, Bengaluru

Class : Class 8

THE ANSWER IS School ahead

Ans 4:

Pratysh Parth Naik from GEMS MODERN ACEDEMY, DUBAI

Class : Class 2

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YASH SAH from DELHI PUBLIC SCHOOL MIS DOHA, Doha

Subject :NSO Class : Class 6

The given figure shows an electric circuit in which a lamp L is connected. What happens to the brightness of the lamp L when the switch S is closed? (Box represents extra resistance in the circuit.)

AIt becomes dimmer.
BIt becomes brighter.
CIt goes off.
DIt remains the same

View All Answers (1)

Ans 1:

PREYA MANJU GARG from lotus valley international school, NOIDA

Class : Class 7

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Tanishka Pasricha from Sheiling House School, Kanpur

Subject :NSO Class : Class 5

Which one of the following is not a mammal?

A
B
C
D

View All Answers (2)

Ans 1:

Sanyog Laddha from Global Indian International School, Pune

Class : Class 6

Ans 2:

Saloni Singh from JPHS, Jaipur

Class : Class 4

kljnh gvbnjkmojhbgv bjnknihbgvu bnkkghjihugvbuhnij

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Ayaan jamal from Dddddd, Delhi

Subject :NSO Class : Class 8

Refer to the given figure and select the incorrect statement regarding this.

A P represents the human male gamete which consists of head, middle-piece and tail.
B Q represents the human female gamete which is a single cell.
C The process shown in the figure is fertilisation.
D The resulting structure formed after the shown process is fetus.

it should not be fetus but zygote

View All Answers (4)

Ans 1:

Chaheli Virendra Jain from Horizon Academy, Nashik

Class : Class 8

Answer D because it is not fetus but zygote formed after process of fertilisation

Ans 2:

Amrit Biswas from INDUSVALLEY PUBLIC SCHOOL, Noida

Class : Class 10

D cuz its zygote

Ans 3:

Aditya Soni from Saint Xavier School, hariyana

Class : Class 8

D

Ans 4:

Aditya Soni from Saint Xavier School, hariyana

Class : Class 8

D is the answer as it is incorrect

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Vanshika Gupta from Kulachi Hansraj Model School, Delhi

Subject :NSO Class : Class 5

Which of the following words cannot be formed from the letters of the given word?

COMPOSITE

ATime
Bpost
Cmost
Dposter

right answer is option d

View All Answers (2)

Ans 1:

Ujjwal Upadhyay from Navy Children school, Vasco

Class : Class 6

Then why are you asking for the answer if you know it???

Ans 2:

Ujjwal Upadhyay from Navy Children school, Vasco

Class : Class 6

Then why are you asking for the answer if you know it???

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Vanshika Gupta from Kulachi Hansraj Model School, Delhi

Subject :NSO Class : Class 5

In a group of 5 girls, shreya is taller than Ritika, Vertika and chhavi. Ishika is taller than chhavi but shorter than Ritika, vertika is the shortest. Who among the following is in the middle of the ascending order of their heights?

AShreya
BRitika
CIshika
DChhavi

option c is right

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Ans 1:

Gunjan Rudraruhi Chauthiya from New Beersheba Public School, Pithoragarh

Class : Class 8

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Ananya D from Sacred Heart School, Thane

Subject :NSO Class : Class 2

While driving Rinki reached a point where the following road signs were present. She should_______________ .

ATake a right turn here
BNot drive at more than 30 km per hour speed
CHalt 10 metres ahead on the road
DNone of these

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Shreyas Singh from Podar International School, Pune

Subject :NSO Class : Class 5

In an experiment, a plant was placed in red coloured water as shown in the figure 'a'. At the end of the day, the stem and a leaf were cut and the red colour was seen as shown in the figure 'b'. Which of the following statements are correct regarding this observation ?

(i) The stem stores water.
(ii) The roots take in water.
(iii) The leaves use water to make food.
(iv) The stem sends water from the roots to the leaves.

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

it shoud 2 one also

View All Answers (2)

Ans 1:

vedant from TSRS Aravalli, Gurgaon

Class : Class 5

c.

Ans 2:

Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai

Class : Class 4

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