National Science Olympiad Forum By SOF Olympiad Trainer - Page 438
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Ashwak from Cambridge, Jalandhar
Subject :NSO    Class : Class 5

Ans 1:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is A because W is bud and from bud a flower comes after a few days the flower turns into a fruit and fruits bear seeds.

Ans 2:

Yuval Gheewala from DAV Public School, Pune
Class : Class 5

Post Your Answer

UTKARSH SAWARN from AIR FORCE SCHAOOL AMBALA CANTT, AMBALA CANTT
Subject :NSO    Class : Class 7

Post Your Answer

UTKARSH SAWARN from AIR FORCE SCHAOOL AMBALA CANTT, AMBALA CANTT
Subject :NSO    Class : Class 7

Ans 1:

Soumyajit Roy from Delhi Public School Jamnagar, Jamnagar
Class : Class 9

Ans 2:

Eklavya Gondule from DPS Bhilai, BHILAI
Class : Class 7
OPTION D IS MISSING! IT CAN BE BOTH A

Ans 3:

Hiyansh Jain from Podar International School, Mumbai
Class : Class 7
A and B both r correct so they should make option D as both A and B even there is no option D so ya possible

Ans 4:

Rucha Patil from Podar International School, Aurangabad C.B.S.E, Aurangabad
Class : Class 8

Ans 5:

Hritvi from Podar International School, Mumbai
Class : Class 7
Option D is missing!!! And Option A and B can also be the answer as both of them are correct. The options in the question itself is an error as there is no option D!

Ans 6:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 10
I think option d is missing and it might be both a and b as both of them r correct

Ans 7:

Jai kumar Bohara from Dps, Udaipur
Class : Class 9

Post Your Answer

UTKARSH SAWARN from AIR FORCE SCHAOOL AMBALA CANTT, AMBALA CANTT
Subject :NSO    Class : Class 7

Ans 1:

Mrittika Roy from DPS Ruby Park, Kolkata
Class : Class 3

Post Your Answer

SHAUNAK from St Xaviers School, HAZARIBAG
Subject :NSO    Class : Class 3

Ans 1:

Soumyajit Das from Hariyana Vidya Mandir, NORTH 24 PARGANAS
Class : Class 6
What a tricky question!

Ans 2:

Ridhika from St Xavier sr sec school, Bathinda
Class : Class 3
D

Ans 3:

Avinabha Hore from DPS south kolkata, Kolkata
Class : Class 5
It is very tricky question.

Ans 4:

Nirvi Pal from jasudben ML School, mumbai
Class : Class 5
it is a piece of cake

Ans 5:

Ashwak from Cambridge, Jalandhar
Class : Class 8
The correct answer is D

Ans 6:

saisavit from sri kumaran ps, bangalore
Class : Class 7
very tricky

Post Your Answer

SHAUNAK from St Xaviers School, HAZARIBAG
Subject :NSO    Class : Class 3

Ans 1:

Ashwak from Cambridge, Jalandhar
Class : Class 8
D

Ans 2:

Aditri Dixit from TCIS, Bangalore
Class : Class 3

Ans 3:

Sarthak Shome from Harvest International, Bangalore
Class : Class 6

Ans 4:

Shrihan Raul from GIIS SINGAPORE, Singapore
Class : Class 4

Ans 5:

Aditri from doha modern indian school, doha
Class : Class 6

Post Your Answer

Karangat house from Navy Children School, Payyannur
Subject :NSO    Class : Class 3

Ans 1:

Karangat house from Navy Children School, Payyannur
Class : Class 3
A

Ans 2:

Karangat house from Navy Children School, Payyannur
Class : Class 3
B

Post Your Answer

Devansh trehan from Blue bells international school , New delhi
Subject :NSO    Class : Class 3

Ans 1:

ANKIT from Kidzee, delhi
Class : Class 5
spinal cord connects every organ to brain an

Ans 2:

Purva Kulkarni from Podar International School ICSE Kalyan, Dombivali east
Class : Class 8
i think heart is correct answer. please elaborate, how come kidney is right answer a

Ans 3:

Advik Daga from Global Edge School, Hyderabad
Class : Class 3
It will be kidney because lungs give out carbon dioxide as waste.Heart is the wrong answer........

Ans 4:

ANKIT from Kidzee, delhi
Class : Class 5
the spi

Ans 5:

Suhani Chauhan from Sai international School, bhubaneswar, Bhubaneswar
Class : Class 6
I thinks it should be heart. As lungs are connected with the heart not kidney.

Ans 6:

saisavit from sri kumaran ps, bangalore
Class : Class 7
D because spinal cord helps brain to control the body.

Ans 7:

ANSHUL GAJJAR from PODAR INTERNATIONAL SCHOOL, AHMEDABAD
Class : Class 3
D

Ans 8:

Riddhima Vashist from Podar International School, Mumbai
Class : Class 3

Ans 9:

Twisha Khurana from First steps IB World school , Chandigarh
Class : Class 5
I think it should be heart not kidney

Ans 10:

Eshan Ghosh from Don Dosco, Berhampore
Class : Class 3

Ans 11:

Riddhima Vashist from Podar International School, Mumbai
Class : Class 3
Heart is the correct answer

Ans 12:

Sanskriti Ranjan from SETH ANANDRAM JAIPURIA SCHOOL, Ghaziabad
Class : Class 6
lungs and spinal cords are part of nervous system so lungs and kidney are part of excretory system(lungs dispose co2 from body)

Ans 13:

Avyukta Saraswat from St Francis School , Greater noida west
Class : Class 3
I think option a is also correct with option d as lungs are in curcularury system system too as the blood first goes to the lungs after the heath and then the body. Lungs also filter air and help us breathe so they are in excretory and resperatory system too. Plese tell how option a hearth is wrong .

Ans 14:

SIDDHARTH SOMANI from Vibgyor High, Mumbai
Class : Class 5
Answer is D because both lungs n kidney are in Exetery system

Ans 15:

Gurram Srisanthan from St Patricks Academy, Bengaluru
Class : Class 3
i think brain n spinal cord are parts of nervous system whereas kidneys n lungs are part of excretory system,through lungs we inhale o2 n exhale co2,kidneys excrete urines

Ans 16:

Kanak goel from Ursuline senior secondary convent school, Greater Noida
Class : Class 6
Heart

Ans 17:

Bushra aslam from uttam, Ghaziabad
Class : Class 8

Ans 18:

Avyukta Saraswat from St Francis School , Greater noida west
Class : Class 3
I think both kidneys and hearth are correct. beacause lungs are in respiratory,curculatory and excretory system as they help us to brathe ,make pure blood and also the blood goes from hearth then lungs and then all parts. Plese tell how hearth is wrone.

Post Your Answer

Ujjwal Upadhyay from Navy Children school, Vasco
Subject :NSO    Class : Class 5

Ans 1:

Dripto Chakraborty from DPS East , Bangalore
Class : Class 4
You can earn badges by studying hard in sof , like doing tests, previous year papers, mock tests, etc.

Ans 2:

Lohithakshith Pati from Olive international school , qatar
Class : Class 8
use your brain bro

Post Your Answer

samyak shwet from kidzee, Begusarai
Subject :NSO    Class : Class 8

Refer to the given passage and answer the following questions.
An experiment is conducted by a student to check the conductivity of potato and the set-up is shown here.

What happens to the compass needle when the switch is closed?

A The compass needle will point towards the right.
B The compass needle will point towards the left.
C The compass needle will not deflect.
D The compass needle will point downwards.


Please answer this

Post Your Answer