National Science Olympiad Forum By SOF Olympiad Trainer

harry potter from hogwarts, hogsmeade

Subject :NSO Class : Class 6

Read the given statements and select the correct option.
Statement 1 : A car can run on road because of force applied by road on the car.
Statement 2 : Friction provides the necessary force for translatory motion for a car starting from rest.

ABoth statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
BBoth statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
CStatement 1 is true and statement 2 is false.
DStatement 1 is false and statement 2 is true.

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Ans 1:

Snigdha swaminath from Christ nagar higher secondary school , Trivandrum

Class : Class 7

Ans 2:

Seshasayee sudharsan from PSBB Learning Leadership Academy, Bangalore

Class : Class 6

the answer is A

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Anhiti Mandal from Shri Ram School, Gurgaon

Subject :NSO Class : Class 6

Read the given paragraph. is the swollen portion at the base of the pistil and it extends above as a thin long structure called , which ends in a knob-like structure at the tip called .
Select the option that correctly fill in the blanks in the above paragraph.

              X                 Y                 Z
AOvule          Ovary           Stigma
BOvary           Stigma          Style
COvaryv         Style             Stigma
DOvule           Stigma          Ovary

Spelling ovary in option c is wrong

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Ans 1:

Sowmya Chandrasekaran from DAV GIRLS SENIOR SECONDARY SCHOOL, Chennai

Class : Class 6

Ans 2:

Rohan Parthasarathy from TSA, BLR

Class : Class 9

Misspelt

Ans 3:

Karthik from Euro, Bengaluru

Class : Class 7

i know

Ans 4:

asmitha from vidhya nikaten public school, coimbatore

Class : Class 8

yea typing error

Ans 5:

Rohan Chopra from TSRS Aravali, Gurgaon

Class : Class 7

what is ovaryv??????/????

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Anhiti Mandal from Shri Ram School, Gurgaon

Subject :NSO Class : Class 6

Which of these is an incorrect statement ?

AJute plants are harvested at the flowering stage.
BRetting is done to soften the tissues so that fibres can be separated easily.
CKnitting is done by machines only.
DWeaving is a process of arranging two yarns together.

Knitting can be done by hand too.

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Ans 1:

Pratham Dave from GNS, Bangalore

Class : Class 7

c

Ans 2: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

C

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Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee

Subject :NSO Class : Class 7

Which of the following will happen if the population of snakes is increased in the given food web?

A The population of frog will increase.
B The population of peacock will decrease.
C There will be no effect on the population of hen.
D The population of grasshopper will increase.

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Ans 1:

AADHYAA MENON from D.Y.Patil International School, Nerul, MUMBAI

Class : Class 5

it is d

Ans 2:

Snigdha Singh from Dhirubhai Ambani International School, Mumbai

Class : Class 10

Ans 3:

from Podar International School,Dhule, Dhule

Class : Class 8

D is the correct answer

Ans 4:

Palash sachin patel from Kips, Patan

Class : Class 8

Ans 5: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

D

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Ekaansh Agarwal from Lotus Valley International School, Gurgaon

Subject :NSO Class : Class 3

If means means means , then which of the following has a triangular face?

A
B
C
D

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Ans 1:

Shreejit Hadavale from Sanskriti School, Pune

Class : Class 5

Ans 2:

Shreejit Hadavale from Sanskriti School, Pune

Class : Class 5

It's difficult to solve

Ans 3:

Azza Maryam from Birla Public School , Doha

Class : Class 3

The last one is incomplete

Ans 4:

Anushtubh Ashish Sonawane from Blue Ridge Public School, Pune

Class : Class 5

very siiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiimple

Ans 5:

Suhana Kedia from Griffin's international school, Kharagpur

Class : Class 5

I didnât understand how ?

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Souraj Saigovindh from Sri chaitanya Techno school, Tirupur

Subject :NSO Class : Class 3

Select the option that correctly arranges the given planets in an ascending order of size.

ASaturn < Jupiter < Uranus < Neptune
BVenus < Neptune < Saturn < Jupiter
CEarth < Mars < Saturn < Jupiter
DVenus < Earth < Mars < Saturn

ne enna loosea

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Ans 1:

Souraj Saigovindh from Sri chaitanya Techno school, Tirupur

Class : Class 6

Ans 2:

SANVI ROHILLA from The little shri, Rohtak

Class : Class 5

Ans 3:

Aaryana from Amaatra Academy, Bangalore

Class : Class 6

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Abhinha Ajay Ovhal from Podar International School, Latur

Subject :NSO Class : Class 1

We should carry_________ whenever we go out, on that day, when the newspaper shows the given symbol in weather report.

A Raincoat
B Sweater
C Umbrella
D Both (A) and (C)

A

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Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

D

The weather report showing the given symbol indicates that it may rain on that particular day. Thus, we should carry umbrella and raincoat with us when we go out.

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XXX from SVM, Bangalore

Subject :NSO Class : Class 2

Cooking oil is NOT obtained from ________.

A

B

C

D

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Ans 1:

Ayaan Ali from Don Bosco , Kolkata

Class : Class 3

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Durva Shah from SSRVM, Ahmedabad

Subject :NSO Class : Class 5

Refer to the given flow chart and select the correct statement regarding X, Y and Z.

AX appears smooth whereas Z appears striated.
BY pumps blood throughout the body.
CX lines the internal wall of blood vessels.
DNone of these

B

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Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

B

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samik from Sri Sri Ravishankar Vidya Mndir, Mumbai

Subject :NSO Class : Class 8

The terminals of a battery are joined by a length of resistance wire. Which change, on its own will decrease the current through the battery?

AConnecting an identical wire in series with the first one.
BCovering the wire with plastic insulation.
CUsing a shorter wire of the same material and same thickness.
DUsing a thicker wire of the same material and same length.

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