National Science Olympiad Forum By SOF Olympiad Trainer
  1. Home
  2. /  Forum

User Forum

Ask Your Question
RONIK PATRA from RAHUL INTERNATIONAL SCHOOL, PALGHAR MUMBAI
Subject :NSO    Class : Class 3

Ans 1:

Soumyajit Das from Hariyana Vidya Mandir, NORTH 24 PARGANAS
Class : Class 3
Pankaj, why are you telling no . It should option 'd'.

Ans 2:

AARAVPRADEEP SAHU from PADMASESHADRI BALBHAVAN SENIOR SECONDARY SCHOOL, CHENNAI
Class : Class 3

Ans 3:

Pankaj Rajput from RBK GLOBAL SCHOOL, THANE
Class : Class 4
NOOOOOOOOOOO!!!!!!!!!!!!!!!!!!!!!!!! i DONT BElive

Ans 4:

AARAVPRADEEP SAHU from PADMASESHADRI BALBHAVAN SENIOR SECONDARY SCHOOL, CHENNAI
Class : Class 3
corrwct yeeeee!!

Ans 5:

MAYANK from Jain Public School, REWARI
Class : Class 5
d

Ans 6:

nirvi pal from jasudben ML School, mumbai
Class : Class 3

Post Your Answer

Shreya Mangesh Patwardhan from City International school Satara road branch, PUNE
Subject :NSO    Class : Class 8

Ans 1:

ARAVINDAN MANIKANDAN from NPS INternational, Singapore
Class : Class 8
Then option A should also be correct as it talks about fermentation

Ans 2:

B Krithika sulochana from Devi Academy senior secondary school, Chennai
Class : Class 8
Option C is the correct answer because yeast causes fermentation .Fermentation is an anaerobic process. In this process yeast converts sugar into alcohol and carbon dioxide. Lime water turns milky indicating the presence of carbon dioxide.

Ans 3:

Ethel shiju from National Public School Indiranagar, Bangalore
Class : Class 9
Option a is wrong because yeast does not convert sugar into lactic acid.

Post Your Answer

tanishka Bondhare from Saraswati international school , Hingoli
Subject :NSO    Class : Class 8

Ans 1:

Zainab from St. Mary's Convent Inter College, Lucknow
Class : Class 8
A

Ans 2:

Ethel shiju from National Public School Indiranagar, Bangalore
Class : Class 9
A vector diagram is a diagram which shows both direction and magnitude....hope you found it helpful!

Post Your Answer

Swarnava Pal from Vivekananda Mission School, Haldia
Subject :NSO    Class : Class 3

Ans 1:

vighneshwar from study hall, Lucknow
Class : Class 5
a

Ans 2:

Rishabh Bhalgat from Vibgyor Yerwada, Pune
Class : Class 2

Ans 3:

Darshil Rath from Sai International School , Bhubaneswar
Class : Class 4
Ans-d because if it is not scarce the house will flow away.

Ans 4:

Sidharth from Vibgyor , Navi Mumbai
Class : Class 3

Ans 5:

Mohinder singh from Sacred heart convent school, Ludhiana
Class : Class 7
My answer was D but it changed itself as C

Post Your Answer

anwesha from v s n, midnapore
Subject :NSO    Class : Class 8

Read the given statements and select the correct option.
Statement-1 : A horse has to pull a cart harder during the first few steps of his motion.
Statement-2 : The first steps are always difficult.

A Both statements-1 and 2 are true and statement-2 is the correct explanation of statement-1.
B Both statements-1 and 2 are true but statement-2 is not the correct explanation of statement-1.
C Statement-1 is true and statement-2 is false.
D Both statements-1 and 2 are false.


Ans 1:

Shreya Mangesh Patwardhan from City International school Satara road branch, PUNE
Class : Class 10
as static friction is always more than sliding friction and horse experiences static friction during its first steps.therefore option [A] is correct.

Ans 2:

Abhinav from nesss, vadodara
Class : Class 10

Ans 3:

Chaitanya L K from SKCHEC, bangalore
Class : Class 8
Yes A is correct

Post Your Answer

Vimala from Narayana, Bangalore
Subject :NSO    Class : Class 4

Ans 1:

Aarush from Podar, Mumbai
Class : Class 7
why dont you tell it yourself

Ans 2:

Aarush from Podar, Mumbai
Class : Class 7
why dont you tell it yourself

Post Your Answer

Vimala from Narayana, Bangalore
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B.

Post Your Answer

Bhagyesh Kamal from DPS, Mumbai
Subject :NSO    Class : Class 6

Read the given passage and answer the questions that follow.
The polar regions are covered with snow. There may also be snowfall in mountain regions during the winter. The trees growing on mountains are cone-shaped, with sloping branches. Many of them, such as pine, have sharp needle-like leaves. Animals living on mountains have thick skin or fur to protect themselves from cold, e.g., yaks and snow leopards.
Why do pines have sharp needle-like leaves?

A This reduces loss of water due to transpiration.
B This reduces chances of catching forest fire.
C This helps the snow to slide-off easily.
D This allows branches to carry loads of snow.


Ans 1:

likith from Delhi Public School International School, Singapore
Class : Class 7
Answer should be both a and c

Ans 2:

Prajith Kumaran from RCIS, Bangalore
Class : Class 7

Ans 3:

Ishaan Mishra from Sai International School, Bhubaneswar
Class : Class 7

Ans 4:

Pulkit Krishna from St. Paul's High School, Hajipur
Class : Class 6

Ans 5:

likith from Delhi Public School International School, Singapore
Class : Class 7

Ans 6:

Snigdha swaminath from Christ nagar higher secondary school , Trivandrum
Class : Class 7
Answer should be both a and c The solution they gave it is written a but the correct answer they wrote c

Ans 7:

Pulkit Krishna from St. Paul's High School, Hajipur
Class : Class 6
The answer is C. You should Know It.

Ans 8:

Vikram from AVM, Mumbai
Class : Class 5

Post Your Answer

Pulkit Krishna from St. Paul's High School, Hajipur
Subject :NSO    Class : Class 6

Post Your Answer

Nivedita Parikh from Children's Academy , Mumbai
Subject :NSO    Class : Class 4

Ans 1:

RAYANSH MISHRA from VIBGYOR HIGH, Pune
Class : Class 4

Ans 2:

LAVANYA DADHWAL from BLOOM PUBLIC SCHOOL, South West Delhi
Class : Class 4
A is correct because bat gives birth to its babies while turtles, crocodiles and ducks lay eggs.....😊so my answer is ✅correct

Ans 3:

Kanav Dhingra from DPS sec45, Gurgaon
Class : Class 6

Ans 4:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 4

Ans 5:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 4
Bats are mammals and so they give birth to young ones.If they were not mammals,they would not have hair on their body.So, based on what is written above by me, it is clear that I think that the correct answer is option 'A'.

Ans 6: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is A.

Ans 7:

Ashwak from Cambridge International School, Saudi Al Dera
Class : Class 7
The correct answer is A because Bat is a mammal and gives birth to young ones while others lay eggs .

Post Your Answer