National Science Olympiad Forum By SOF Olympiad Trainer

Yasmeen Shaikh from Ryan International CBSE, Mumbai

Subject :NSO Class : Class 4

9 years ago

Study the given diagram carefully. The number represented by (?) is _______.

(A) 24

(B) 16

(C) 64

(D) 196
how come 16

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Ans 1:

Himani Arora from JVM, Ballari

Class : Class 5

8 years ago

The logic behind answer..?

Ans 2:

Bidusmita Rath from Sri Chaitanya Techno School, Bangalore

Class : Class 5

7 years ago

how to formulate such a complex Q: in exam....?

Ans 3:

Adithi Keshava from National Center For Excellence , Bangalore

Class : Class 7

8 years ago

Ans 4:

nitin loya from prabhat kids, Akola

Class : Class 4

8 years ago

easy but Brainny

Ans 5:

Tarpan Pramanik from J.N.Academy, Berhampur

Class : Class 5

8 months ago

1.Actually the reason behind this is 10÷2*5=25 Now here 25 s square means 25*25= 625 2. In the same way in pattern ii, 9÷3*2=6 which is the square root of 36 3. According to this logic 8÷4*2=4 which is the square root of 16. So, the correct answer is option (b) 16

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HARSHIKAA DHAR from Delhi Public School, Noida

Subject :NSO Class : Class 4

9 years ago

Beena observed the Moon on 15th December and drew its sketch as shown. What will be the shape of the moon on 13th January ?

(A)

(B)

(C)

(D)

View All Answers (1)

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

7 years ago

The correct answer is C.

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HARSHIKAA DHAR from Delhi Public School, Noida

Subject :NSO Class : Class 4

9 years ago

Find the perimeter of the given figure (not drawn to scale).

(A) 68 cm

(B) 65 cm

(C) 57 cm

(D) 71 cm

View All Answers (7)

Ans 1:

OISHIK KUNDU from Delhi Public school North kolkata, baranagar

Class : Class 4

8 years ago

same as me

Ans 2:

S Nithyanth from Geethanjali Vidyalaya, Bangalore

Class : Class 6

7 years ago

same

Ans 3:

ABHAY AGARWAL from ,

Class : Class 3

8 years ago

Ans is sixty five (B)

Ans 4:

ABHAY AGARWAL from ,

Class : Class 3

8 years ago

This is terrible

Ans 5:

Jayanth from The Deens Academy, Bengaluru

Class : Class 4

7 years ago

Ans 6:

S Nithyanth from Geethanjali Vidyalaya, Bangalore

Class : Class 6

7 years ago

Ans 7:

Priyam Bhattacharya from cambridge court high school, jaipur

Class : Class 6

8 years ago

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Sumeet Verlekar from ,

Subject :NSO Class : Class 5

9 years ago

The Agra Fort is made up of which kind of rocks?

A Limestone
B Sandstone
C Granite
D Marble

Not everyone knows the Agra fort therefore they will not be able to answer this question so this question is irrelevent. Agra fort information is also not provided in any study material of MTG.

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Adivishnu SP from Delhi Public School Nadergul, Hyderabad

Subject :NSO Class : Class 4

9 years ago

In the given food web, how many animals are
a. only plant eaters?
b. only animal-eaters?

            a            b
A 3            4
B 2            2
C 1            5
D 4            3

explain it please

View All Answers (10)

Ans 1:

BV Karthikeya from Sentia, Hyderabad

Class : Class 6

7 years ago

Ans 2:

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

Class : Class 8

5 years ago

They haven't specified that it should be ONLY animal eater.

Ans 3:

Punyatoya from Harvest, Bengaluru

Class : Class 8

4 years ago

True

Ans 4:

TANVI D MARGHADE from PODAR INTERNATIONAL SCHOOL POWAI, MUMBAI

Class : Class 6

5 years ago

Ans 5:

Sarthak Gupta from DPS, Haryana

Class : Class 4

8 years ago

Ans 6:

RAGHAV VARSHNEY from CITY MONTESSORI SCHOOL GOMTINAGAR LUCKNOW, Lucknow

Class : Class 7

3 years ago

Ans 7:

Lakshya Singh Tomar from DPS Noida, Noida

Class : Class 4

6 years ago

please SOF don`t be mad

Ans 8:

Aahana Agarwal from NPS Koramangala, Bengaluru

Class : Class 6

7 years ago

They haven't said that the only animal eaters .

Ans 9:

Punyatoya from Harvest, Bengaluru

Class : Class 8

4 years ago

Ans 10:

Punyatoya from Harvest, Bengaluru

Class : Class 8

4 years ago

True

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Supratim Biswas from DPS RUBY PARK KOLKATA, kolkata

Subject :NSO Class : Class 5

9 years ago

Approximate what percentage of the earth is illuminated by the Sun at any given time?

A10%
B25%
C50%
D90%

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Ans 1:

SHREYAS ANDOTRA from RYAN INTERNATIONAL SCHOOL, CHANDIGARH

Class : Class 8

8 years ago

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Anhiti Mandal from Shri Ram School, Gurgaon

Subject :NSO Class : Class 6

9 years ago

Manu has three identical roses but of different colours; red, yellow and white. She shines a torch on the three roses in turn and gets a shadow on the wall in each case. Deepak who is observing the shadows formed on the wall can

ADistinguish shadow of red rose only.
BDistinguish shadow of red rose only
CDistinguish shadows of all the three roses.
DNever distinguish the shadows of three roses.

why is it d

View All Answers (3)

Ans 1:

Soham Panchal from ,

Class : Class 6

9 years ago

This is because the colour of the shadow is always black even if the colour of screen orthe colour of the light is different...

Ans 2:

khushi Joshi from Svkm , Mumbai

Class : Class 10

8 years ago

Since the colour of the shadow doesn't depend on the colour of the object, you cannot distinguish the roses from each other as the colour of the shadow (black) will remain same for all the roses.

Ans 3:

Arunangshu Karmakar from Salt Lake School (English Medium), Kolkata

Class : Class 6

9 years ago

All the three roses are opaque and will have the same shadow. Regardless of the colour of the rose, the colour of the shadows will always be something darker than the colour of the wall. Thus, no rose could be distinguished from the other by looking at their shadows. So D is the correct answer.

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Sree Samyukta from National Public School, Yelahankat, Bengaluru

Subject :NSO Class : Class 6

9 years ago

What is the smallest number of squares that must be added so that the line MN becomes a line of symmetry?

(A) 4

(B) 5

(C) 6

(D) 7

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Ans 1:

student from school, city

Class : Class 10

7 years ago

Ans 2:

Pulkit Khanna from DELHI PUBLIC SCHOOL RUBY PARK KOLKATA, Kolkata

Class : Class 9

8 years ago

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SOMRAJ HAZRA from Modern Delhi Public School, Faridabad

Subject :NSO Class : Class 3

9 years ago

Find the missing number in the pattern below. 7982, 7992, ? , 8012, 802

(A) 7002

(B) 8002

(C) 7993

(D) 8902
it is very di

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Ans 1:

Admin from Revisewise, Noida

Class : Class 3

9 years ago

7982 + 10 = 7992 + 10 = 8002 + 10 = 8012 + 10 = 8022 Answer will be B

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Adivishnu SP from Delhi Public School Nadergul, Hyderabad

Subject :NSO Class : Class 4

9 years ago

Which of the following are NOT means of mass communication?
a. Telephone
b. Magazine
c.   Postcard
d. Newspaper
e.  Television
f.   Radio

A a , b and d
B d , e and f
C b and c
D a

Can I get an explanation for this

View All Answers (7)

Ans 1:

Meghav Ladani from zydus school for excellence, ahmedabad

Class : Class 8

7 years ago

Ans 2:

Iraj Singh from DPS Megacity, Kolkata

Class : Class 9

5 years ago

The correct answer is D.

Ans 3:

Nithya Soman from The Charter School, Eranakulam

Class : Class 7

2 years ago

gidjodl;.zmnaol,;d,vsjdik.rijziunewejndi,jzzjnxdmerbnebfxzudhsjpojfiujc,xi.kzopfxok,.t,bv

Ans 4:

Vivaan from Rustomjee Cambridge International School and Junior College, Mumbai

Class : Class 6

6 years ago

Ans 5:

Vivaan A V from Loyola school, Jamshedpur

Class : Class 4

4 months ago

NONE OF THE ANSWERS ARE CORRECT!!IT IS 'A' AND 'C' SOF!PLZ CORRECT IT

Ans 6: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

7 years ago

The correct answer is D.

Ans 7:

Archit Das from NPS, Singapore

Class : Class 6

5 years ago

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