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Ashwak from Cambridge, Jalandhar
Subject :NSO    Class : Class 3

Two containers X and Y, of the same size and thickness, contained 1000 mL and 600 mL of water, respectively. Both were heated over two separate flames till the water in them boiled.
If the water used in both containers took 10 minutes to reach boiling point, what conclusions can be made?
1. The flame used for container X is stronger than that used for container Y.
2. Container X is better conductor of heat than container Y.
3. The water in container X was colder than that in container Y at the beginning of the experiment.

A 1 only
B 2 only
C 1 and 2 only
D 1, 2 and 3


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Ashwak from Cambridge, Jalandhar
Subject :NSO    Class : Class 5

Ans 1:

Biju Pappachan from Rkc , Raipur
Class : Class 1
Any ways,can anyone explain??

Ans 2:

Arnav Nandan from ST PETERS COLLEGE AGRA, Agra
Class : Class 9
B because it means ( here ) that orbit will be bigger as a planet is away from sun and, longer distance means long revolution

Ans 3:

Biju Pappachan from Rkc , Raipur
Class : Class 1
Take no offence,Snow White.

Ans 4:

Raksheet Shah from Swami Vivekanad International School, Mumbai
Class : Class 8
answer is B

Ans 5:

sarah pranav gothivarekar from Indian School Al Gubra, Muscat
Class : Class 4

Ans 6:

Shraddha S Nair from Bright CBSE, Day school vasna, Vadodara
Class : Class 7
Answer is B . If we imagine that the planet X is mercuryAnd planet Y is Mars who will take more time it will be Mercury because it is near to the sun and will revoluteFaster than Mars

Ans 7:

Ujjwal Upadhyay from Navy Children school, Vasco
Class : Class 6
Answer is B.

Ans 8:

sankerths s from Shishya BELM public School, Bangalore
Class : Class 10

Ans 9:

Gayatri Iyer from Sanskriti School, Pune
Class : Class 9
Who is this Snow White, man!

Ans 10:

Ashwak from Cambridge, Jalandhar
Class : Class 8
Biju Pappachan ... Whom do you address as Snow White ?

Ans 11:

Biju Pappachan from Rkc , Raipur
Class : Class 1
Hello Snow White!haha

Ans 12:

Pratham Dave from GNS, Bangalore
Class : Class 7
B is the answer to this question

Ans 13:

Ashee Srivastava from APEEJAY SCHOOL NOIDA , NOIDA
Class : Class 7
b

Ans 14:

Ashwak from Cambridge, Jalandhar
Class : Class 8

Ans 15:

RAMAYANI PAKHARE from S M SHETTY HIGH SCHOOL, MUMBAI
Class : Class 6
B

Ans 16:

Shraddha S Nair from Bright CBSE, Day school vasna, Vadodara
Class : Class 7
Sorry sorry the Mars will take more time who ever isReading my post

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Archana Verma from EuroSchool , Pune
Subject :NSO    Class : Class 4

Avinash grouped plants on the basis of their habitats. By mistake, he placed one wrong plant in each group. Identify the odd member of each group and select the correct option.
Group I : Duckweed, Hydrilla, Opuntia
Group II : Banyan, Mango, Acacia
Group III : Barrel cactus, Joshua tree, Vallisneria

A Duckweed in group I is incorrectly placed and should be replaced with arrowhead plant.
B Mango in group II should be interchanged with Joshua tree in group III.
C Opuntia in group I should be interchanged with Vallisneria in group III.
D Banyan in group II is incorrectly placed and should be replaced with gulmohar.

Ans 1:

Vikas Jhamb from Bhawan, Chandigarh
Class : Class 3

Ans 2:

KSHITIJ BHATIA from St Francis De Sales, New Delhi
Class : Class 4

Ans 3:

Bushra aslam from uttam, Ghaziabad
Class : Class 8
😓how.????

Ans 4:

Bushra aslam from uttam, Ghaziabad
Class : Class 8
NA

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Ashwak from Cambridge, Jalandhar
Subject :NSO    Class : Class 3

Ans 1:

from ,
Class :
D

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

Ans 1:

SOUMI PAL from DELHI PUBLIC SCHOOL, DURG
Class : Class 6

Post Your Answer

Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

Ans 1:

Tejesh VB from GEMS New Millennium School, Al Khail, Dubai
Class : Class 8

Ans 2:

Jayanth from The Deens Academy, Bengaluru
Class : Class 4
You have to specify if waxing or waning crescent

Ans 3:

Vedang Siddharth Thakare from SMT's Saraswati English Medium School., Thane
Class : Class 4

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yagna from DPS, Surat
Subject :NSO    Class : Class 8

Ans 1:

vatsal jay gandhi from new era senior secondary school, Vadodara
Class : Class 8
Please explain it. I am also confused about the answer. I myself did B.

Ans 2:

ARNAV BARANWAL from KPS SCHOOL, bhilai
Class : Class 8
answer should be B

Ans 3:

SaiKrishna from Chettinad Vidyashram, Chennai
Class : Class 3
Option D is correct because current prefers the path that offers less resistance. The bulb provides resistance whereas the switch when closed does not. Hence correct answer is D

Ans 4:

Yatharth Agrawal from Indira National school, Pune
Class : Class 8
It must be B.The current finds a more direct path to Y, Making it brighter.But the current still reaches X because there is still a path. SOF Says otherwise.

Ans 5:

Priyanshi from Delhi Public School Agra, Agra
Class : Class 9
Yess,my answer was B also

Ans 6:

Nilanjana De from Delhi Public School North, Bengaluru
Class : Class 8
The answer key says that X will not light up,but why?

Ans 7:

Vaidheesh Bharadwaj from NPS, Bangalore
Class : Class 7
I too am confused as current will also flow through both the bulbs when circuit is closed. It will pass through the switch first and hence lighting up bulb Y.

Ans 8:

Akshay Malhan from NHSS, Thane
Class : Class 8
logically it should be B but sof says otherwise. why ????

Ans 9:

Dev Rawat from R D Rajpal School, New Delhi
Class : Class 8
The answer is B

Ans 10:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10
b

Ans 11:

Vishwanath Halkeri from sudarshan vidya mandir, Bangalore
Class : Class 8

Ans 12:

Abhay Agarwal from St Francis School, Ghaziabad
Class : Class 9
yes i too did B

Ans 13:

Kingshuk Gupta from RN Podar school, Mumbai
Class : Class 9

Ans 14:

Prabhav Kaushik from DPS Noida, Noida
Class : Class 8

Ans 15:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 6
answer should be b because X will also lit up

Ans 16:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 6
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb is correct as current will flow though X but I do feel that current will prefer less resistant path so D can also be correct

Ans 17:

Advait talnikar from Dhruv Global School, Sangamner
Class : Class 6
The answer should be B as it will be closed circuit

Ans 18:

Triguna from Kendriya Vidyalaya No.1 Salt Lake, Kolkata
Class : Class 8
X will light up... I think it's incorrect....

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DIKSHIT SUNDAR from vidhysaram, chennai
Subject :NSO    Class : Class 5

Ans 1:

Ujjwal Upadhyay from Navy Children school, Vasco
Class : Class 6
The answer is d

Ans 2:

Sumit Biswal from Dps gandhinagar, Gandhinagar
Class : Class 8
I was a bit confused between C and D

Ans 3:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
Sorry , my brother changed the C into D . It should be C only !

Ans 4:

Aaditya Malhotra from Isaac Newton Global School, Mumbai
Class : Class 3
D

Ans 5:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
It is a very serious thing for us that we are getting wrong answers from SOF . It should be D only !

Ans 6:

Anantjit Chander from The Modern School, Sector 85, Greater Faridabad, Faridabad
Class : Class 9

Ans 7:

Rishit Garg from Bhavan s B P Vidya Mandir , Nagpur
Class : Class 9

Ans 8:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 9:

Suhani from DPSG, Modinagar
Class : Class 9
The answer is c

Ans 10:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 11:

Anantjit Chander from The Modern School, Sector 85, Greater Faridabad, Faridabad
Class : Class 9
Sorry all, I had not read the question well.😞😞

Ans 12:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 13:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
no chart no answer

Ans 14:

FAIZAN HUSSAIN from SYED ABID HUSSAIN SR. SEC. CHOOL (MIDDLE SECTION), DELHI
Class : Class 4
Low High Many Many

Ans 15:

Hitarth Bhardwaj from Teoler High School, Jaipur
Class : Class 6
Veer Sehrawat, how c, the question says which town is located near an unpolluted river not a polluted river.

Ans 16:

shivan iyer from dr pillai global academy, MUMBAI
Class : Class 4
d

Ans 17:

Hitanshi Behera from Loyola School , Bhubaneswar
Class : Class 4
ans is D so easy

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

Ans 1:

ishit from EUROSCHOOL THANE, THANE WEST
Class : Class 7

Ans 2:

AHANA BAG from DELHI PUBLIC SCHOOL JOKA SOUTH KOLKATA, KOLKATA
Class : Class 9

Ans 3:

Bushra aslam from uttam, Ghaziabad
Class : Class 8
NA

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