National Science Olympiad Forum By SOF Olympiad Trainer

Archishman Pal from Sri Krishna Mission School, Agartala

Subject :NSO Class : Class 7

Read the given statements and select the option that correctly states them as true (T) and false (F) ones.
(i) Food protects us from diseases.
(ii) Ingredients of food that we eat comes from plants only.
(iii) People living in different states of India eat same kind of food.
(iv) In carbohydrates, hydrogen and oxygen occur in the ratio of 2 : 1

A(i) - T; (ii) - F; (iii) - F; (iv) - T
B(i) - T; (ii) - T; (iii) - F; (iv) - F
C(i) - F; (ii) - T; (iii) - T; (iv) - F
D(i) - F; (ii) - F; (iii) - F; (iv) - T

Do junk food also protects us from diseases ?

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Ans 1:

Archishman Pal from Sri Krishna Mission School, Agartala

Class : Class 9

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Nandana from St Thomas Residential School, Trivandrum

Subject :NSO Class : Class 10

A constant current of 3.0 A flows counter clockwise in the circular coil P as shown in figure.

What is the direction of the induced current in the coil Q on the right?

AClockwise
BCounter clockwise
COut of the page
DThere is no induced current

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Anaya Parag Bhanuwanshe from Ashoka Universal school , Nashik

Class : Class 10

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NEELADRI MISHRA from D A V Public School. Unit VIII, Bhubaneshwar

Subject :NSO Class : Class 6

A square transparent sheet with a pattern is given. Find the figure from the options as to how the pattern would appear when the transparent sheet is folded along the dotted line.

A
B
C
D

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Aditi Saha from Bishops KalyaniNagar, Pune

Subject :NSO Class : Class 9

Friction acting between two different objects increases with

AIncrease in irregularities of the surfaces in contact
BIncrease in surface area of contact
CDecrease in surface area of contact
DCan not be changed anyway

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from ,

Subject :NSO Class : Class 6

Which of the following figures will complete the given figure matrix?

A
B
C
D

So

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Ans 1:

REYANSH JAIN from Pawar Public School hadapsar, pune, pune

Class : Class 6

Ans 2:

sanvi from ndbs, Dehradun 248001

Class : Class 6

ans is d

Ans 3:

Garima from nath valley, m

Class : Class 6

DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

Ans 4:

Tejas Sharma from Rani Laxmibai Public School, Jhansi

Class : Class 6

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Subhang Deep Sahu from Narayana CO Kadugodi Bangalore, Bangalore

Subject :NSO Class : Class 5

Which part of brain will most likely affect our muscular coordination?

ACerebrum
BDiencephalon
CMedulla
DCerebellum

mmm..

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Ans 1:

Subhang Deep Sahu from Narayana CO Kadugodi Bangalore, Bangalore

Class : Class 8

mmm...

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Hargun Wadhwa from Manav Rachna International School, Sector 46 Gurgaon

Subject :NSO Class : Class 2

Which of the following is the shape of a Crescent Moon?

A
B
C
D

DO we have to see the black or the white part

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Ans 1:

Hargun Wadhwa from Manav Rachna International School, Sector 46 Gurgaon

Class : Class 4

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kunal baliyan from D.M.A, mouuter

Subject :NSO Class : Class 4

The given pictures show the developmental stages of a butterfly arranged randomly. Select the stage of its life cycle during which it is (a) most active eater, and (b) least active.

A(a)- d; (b)- g
B(a)- e; (b)- f
C(a)- d; (b)- e
D(a)- f; (b)- g

yes it's creect

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Ans 1:

Tejaswini C from sboa school and junior college, chennai

Class : Class 6

Ans 2:

Vihaan Yadav from NKBGS SECTOR 17 DWARKA NEW DELHI , Delhi

Class : Class 5

Answer is D

Ans 3:

Vihaan Yadav from NKBGS SECTOR 17 DWARKA NEW DELHI , Delhi

Class : Class 5

Answer is c

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Advaith m from New horizon public school, Bangalore

Subject :NSO Class : Class 6

The given flow chart represents the methods to separate the components of a mixture.

Study the flow chart carefully and identify X, Y and Z.

AX - Chalk powder; Y - Water; Z - Salt
BX - Salt; Y - Water; Z - Sugar
CX - Sugar; Y - Water; Z - Sugar
DX - Sawdust; Y - Water; Z - Water

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Ans 1:

Anahita.Mathur from dpsnoida, Noida

Class : Class 6

The options are incorrect

Ans 2:

Shreeya Mangla from ASN Senior Secondary School, New Delhi

Class : Class 9

The question isn't wrong. The options are. And the correct option is also wrong

Ans 3:

Hridhaan Talukdar from National Public School Koramangala, Bangalore

Class : Class 7

Ans 4:

Advaith m from New horizon public school, Bangalore

Class : Class 4

The goddamn question is wrong

Ans 5:

Jai Ranjan from Next school , Mumbai

Class : Class 8

The options are wrong

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Angela from NEW GULF INDIAN SCHOOL, KUWAIT

Subject :NSO Class : Class 2

Study the given family tree of Sakshi.

How is Sakshi related to Q and R?

AQ is Sakshi's grandmother and R is Sakshi's nephew.
BQ is Sakshi's grandfather and R is Sakshi's niece.
CQ is Sakshi's grandfather and R is Sakshi's cousin sister.
DQ is Sakshi's aunt and R is Sakshi's cousin brother.

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