National Science Olympiad Forum By SOF Olympiad Trainer

Omar from International Indian Public School, Riyadh

Subject :NSO Class : Class 2

Can I know how can I download the materials for which I have made the payment. I can't see this under the download option.

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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:

Rohan Parthasarathy from TSA, BLR

Class : Class 9

Misspelt

Ans 2:

Sowmya Chandrasekaran from DAV GIRLS SENIOR SECONDARY SCHOOL, Chennai

Class : Class 6

Ans 3:

asmitha from vidhya nikaten public school, coimbatore

Class : Class 8

yea typing error

Ans 4:

Rohan Chopra from TSRS Aravali, Gurgaon

Class : Class 7

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

Ans 5:

Karthik from Euro, Bengaluru

Class : Class 7

i know

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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: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

C

Ans 2:

Pratham Dave from GNS, Bangalore

Class : Class 7

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:

from Podar International School,Dhule, Dhule

Class : Class 8

D is the correct answer

Ans 3: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

D

Ans 4:

Snigdha Singh from Dhirubhai Ambani International School, Mumbai

Class : Class 10

Ans 5:

Palash sachin patel from Kips, Patan

Class : Class 8

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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:

Anushtubh Ashish Sonawane from Blue Ridge Public School, Pune

Class : Class 5

very siiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiimple

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:

Shreejit Hadavale from Sanskriti School, Pune

Class : Class 5

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:

Aaryana from Amaatra Academy, Bangalore

Class : Class 6

Ans 2:

Souraj Saigovindh from Sri chaitanya Techno school, Tirupur

Class : Class 6

Ans 3:

SANVI ROHILLA from The little shri, Rohtak

Class : Class 5

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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 1

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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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