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from ,
Subject :NSO    Class : Class 3

Ans 1:

MAYANK from Jain Public School, REWARI
Class : Class 9
D

Ans 2:

Havi Jain from GEMS modern academy, Gurgaon
Class : Class 8
all of these option(D)

Ans 3:

Samik Praveen from Euro School Airoli, Mumbai
Class : Class 6
All of these

Ans 4:

Mahima g pillai from Arya central school, Trivandrum
Class : Class 6
D

Ans 5:

Aathrei MS Damodaran from Chrysalis High, Bengaluru
Class : Class 8
A is not correct D is correct

Ans 6:

Gaurika Bhasin from Genesis global school, Noida
Class : Class 2
Fruits (2) contain minerals and vitamins and are protective food. They help in recovering from illness. Overeating of fried food (1) leads to obesity as it contains fat that gets stored in the body. Chocolates (3) contain a lot of carbohydrates which give us energy when hungry.

Ans 7:

MAYANK from Jain Public School, REWARI
Class : Class 9
A

Ans 8:

akshitha from Euroschool, Bengaluru
Class : Class 3
all of these

Ans 9:

Aathrei MS Damodaran from Chrysalis High, Bengaluru
Class : Class 8
D is correct

Ans 10:

Vineet Banode from New Horizon Scholars School, Pune
Class : Class 5

Ans 11:

Kartikey Kumar Jindal from Dikshant International School, Zirakpur
Class : Class 5
Everyone thinks that a option is correct but it is wrong.The correct answer is d part.Everyone will think that chocolate is junk food.How can it give us the energy but chocolate contains fat.That's why when when we are hungry it gives us a lot of energy

Ans 12:

Shruti from ,
Class : Class 1
d and Gaurika actually chocolate contains fats

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from ,
Subject :NSO    Class : Class 7

Ans 1:

Anuraaj Salunkhe from St Gregorios High School, Mumbai
Class : Class 10

Ans 2:

from ,
Class :
shape of dish also should be included. Amount of water poured doesnt matter as long as you are collecting equal volume in all dishes. Hence similar dishes is important.

Ans 3:

Mehaan Bhatt from Pawar Public School , Mumbai
Class : Class 6

Ans 4:

Palash sachin patel from Kips, Patan
Class : Class 8
d is correct answer

Ans 5:

Aanya from DAV, Gurgaon
Class : Class 8
Option D is the correct answer

Ans 6:

Shreyans Mondal from Sri Chaitanya Techno School Kaggadasapura Campus 1, Bengaluru
Class : Class 10

Ans 7:

Saksham Chanani from Sri Sri Academy, Kolkata
Class : Class 9
D

Ans 8:

Dhairya Vinayak from Loyola High School, Patna
Class : Class 8

Ans 9:

aditya ranjan from gyan niketan , patna
Class : Class 7
i think amount of water also nedd

Ans 10:

shreya from GIIS, KualaLumpur
Class : Class 5

Ans 11:

Avaneesh Sai Vemparala from The knowledge habitat, Pune
Class : Class 3
The amount of water also matters right

Ans 12:

Agastya Tripathi from dps gurgaon, Gurgaon
Class : Class 4
Water is also correct

Ans 13:

Akshay Jha from DPS NERUL, Navi Mumbai
Class : Class 7
D, amount of water matters the most out of all.

Ans 14:

Antareep Mukherjee from New Horizon Public School, Bangalore
Class : Class 8

Ans 15:

Riyan Nayak from DPS Newtown, Kolkat
Class : Class 7
c should be the correct answer

Ans 16:

Adhrit from CHSV, Chennai
Class : Class 8
Definitely D

Ans 17:

Rithvik from BVM Global, Chennai
Class : Class 9
d

Ans 18:

ALICE from Delhi Public School, UDAIPUR
Class : Class 9

Ans 19:

Shriyans from DPS Agra, Agra
Class : Class 8
D

Ans 20:

Tanmayi kiran giri from airforce force public school Vayusena Nagar, Nagpur, nagpur
Class : Class 9
I do agree it's D

Ans 21:

Shreya Sudarshan from RVK - Banashankari, Bengaluru
Class : Class 7
All the given factors are required for a fair test ; So option D would be the correct answer

Ans 22:

Medha Bijjaram from Prime Academy, Mumbai
Class : Class 9
I think D is the correct answer

Ans 23:

from ,
Class :
I feel that it is D

Ans 24:

Himanish Basu from Army Public School Kamaraj Road, Bangalore
Class : Class 7

Post Your Answer

from ,
Subject :NSO    Class : Class 6

Ans 1:

RUDRAKSH BISWAS from MAYOOR PRIVATE SCHOOL, ABU DHABI
Class : Class 6
It really should be A

Ans 2:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
answer is a

Ans 3:

Hridhaan Talukdar from National Public School Koramangala, Bangalore
Class : Class 7

Ans 4:

from ,
Class :
A is the correct answer

Ans 5:

Advay Das from Delhi Public School, Gurgaon
Class : Class 5

Ans 6:

ridhima from mdps, faridabad
Class : Class 6

Ans 7:

Vidula Malkar from DPYA High school, Mumbai
Class : Class 7
a is the correct answer because chemical composition dose not change

Ans 8:

Arnesh from dps, delhi
Class : Class 6
It should be A

Ans 9:

ATHARV RAHUL MAHAJAN from ST. STEPHENS SCHOOL CHANDIGARH, SAS NAGAR
Class : Class 6
IF WE SHARP A PENCIL IT IS A PHYSICAL IRREVERSIBLE CHANGE .SO,IF WE HEAT A POT IS PHYSICAL IRREVERSIBLE CHANGE. BUT IT COULD HAPPEN THAT THE COMPOSITION OF CLAY MIGHT CHANE BECAUSE OF HEATING AS THE MOLECULES STICK TO EACH OTHER

Ans 10:

Sohan Choudhury from Delhi Public School Electronic City Bengaluru, Bengaluru
Class : Class 6
on heating, the clay pot doesn't turn into stone,right?it doesn't change composition once heated , it is still clay ! answer is "A"

Ans 11:

Archisman Rout from Podar International School, Powai
Class : Class 7
A is correct because it just turns hard but it is still clay only.And also chemical change doesn't mean that it is irreversible,Chemical change means that the identity of the substance we started with is lost.Here the identity is not lost.So A is correct.

Ans 12:

Anika Saha from New Town School, KOLKATA
Class : Class 6
The answer is A.

Ans 13:

Rasha Ranjan from DPS NOIDA , Vaishali
Class : Class 6
Yes ,Because chemical means change in the properties but there is no change .The answer is A

Ans 14:

from ,
Class :
C because we can get clay back from a wet pot by smashing it,but once it heats up, it dries the clay and makes it stone hard.

Ans 15:

Tanishtha from DPS, Greater Noida
Class : Class 7
c is the correct answer

Ans 16:

D Murari from Indian School of Excellence, Bangalore
Class : Class 9
C,because- it is a chemical change. after baking we can break it into smaller particles but it won't form the same clay, with same properties again

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from ,
Subject :NSO    Class : Class 7

Ans 1:

Harshdeep roy from Bhavans School , Nagpur
Class : Class 7
answer is option c

Ans 2:

Aarnavi Mann from Scholars rosary Sr. Sec. School, Rohtak
Class : Class 8

Ans 3:

saikrishna from bharatiya vidhya bhavans public school, Hyderabad
Class : Class 9
can someone explain why?

Ans 4:

Medha Bhutani from Christ Academy, Bengaluru
Class : Class 9
ans is option C

Ans 5:

Parshti Bajpai from Modern Public School, ALWAR
Class : Class 7
Please explain it to me.

Ans 6:

Praveen Rai from Lotus Valley International School, Noida
Class : Class 7

Ans 7:

Lakshya Vijeta from Afgji, New Delhi
Class : Class 8
Option D is correct. I dont know why. Please explain

Ans 8:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
ans is option C

Ans 9:

Aksh Swarnkar from National Center for Excellence CVR, Bangalore
Class : Class 9

Post Your Answer

from ,
Subject :NSO    Class : Class 4

Ans 1:

from ,
Class :
jk kj;

Ans 2:

from ,
Class :
Not kerwa its kewra. It is an extract that is distilled from the flower of the Pandanus plant. Kewra water is very similar to rosewater. It is used to flavour South Asian cuisine.

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from ,
Subject :NSO    Class : Class 6

Ans 1:

from ,
Class :
As it goes up,kinetic energy decreases due to gravity while potential energy increases with height. As it comes down, kinetic energy increases due to gravity while potential energy decreases.

Ans 2:

from ,
Class :
it will be maximum near the ground

Post Your Answer

from ,
Subject :NSO    Class : Class 6

Ans 1:

from ,
Class :
it will be maximum near the ground

Post Your Answer

from ,
Subject :NSO    Class : Class 7

Saurabh burned two different fibres X and Y in order to identify them. X smelt like burning paper while Y smelt like burning hair. Which of the following options correctly identifies the two fibres?


Ans 1: (Master Answer)

from ,
Class :
The correct answer is C.

Ans 2:

Aparajita Biswas from Don Bosco School Silchar, SILCHAR
Class : Class 7
THE CORRECT ANS IS OPTION C

Ans 3:

Aksh singh from The asian school, Dehradun
Class : Class 7

Ans 4:

Ishaan Roy from Sri Chaitanya Techno School, Bengaluru
Class : Class 10

Post Your Answer

from ,
Subject :NSO    Class : Class 6

Ans 1:

Utkarsh Chakravarty from Pinnacle High International School, Mumbai
Class : Class 6
i mean except Satwik

Ans 2:

Utkarsh Chakravarty from Pinnacle High International School, Mumbai
Class : Class 6
I agree with everyone is Satwik because air trasparent it neither reflects nor absorbs light and trasmits whole of light So ans is D

Ans 3:

Mitra Maiti from Techno India Group Public School, Bolpur Prantik
Class : Class 6
It is true that air is a perfectly transparent object. It neither absorbs nor reflects light. It transmits whole of light. So, all the options are correct and answer is D.

Ans 4:

Siddharth from DPS, Jodhpur
Class : Class 9
The correct answer should be option D, All of these

Ans 5:

Karthik from Euro, Bengaluru
Class : Class 7
ans is d

Ans 6:

Anika Saha from New Town School, KOLKATA
Class : Class 6
ANS IS D

Ans 7:

Aarav Garg from DPS Greater Noida, Greater Noida
Class : Class 7
It should be d but they are telling its b.

Ans 8:

Tanishtha from DPS, Greater Noida
Class : Class 7
ans is d

Ans 9:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Explain this dumb question and an even dumber answer " Master Answer"

Ans 10:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
i agree with d

Ans 11:

Ayush Chauhan from Modern Public School, Bhiwadi
Class : Class 9
Answer is D

Ans 12:

Thejaswini from Rajagiri, Chennai
Class : Class 7

Ans 13:

Devdarsh hero from HOLY GRACE, Mala
Class : Class 6
ans is D

Ans 14:

arnav santosh shinde from new english school , landewadi
Class : Class 4
ANS IS D

Ans 15:

Shruti Rajshree from NPS Indiranagar, Bengaluru
Class : Class 3
answer is B as given in the answers. there is a solution too

Ans 16:

Aditya Sai Kedarisetty from Sri Kumarans childrens Academy DKS, Bangalore
Class : Class 7
@ashwak control your language

Ans 17:

Mihika Hivarekar from Global Indian International School, Pune
Class : Class 7
CHILL PPL CHILL

Ans 18:

Hari Govind from Delhi Public School Chandigarh , Chandigarh
Class : Class 6
THE ANSWER IS D

Ans 19: (Master Answer)

from ,
Class :

Ans 20:

ARAMINTA SAHA from VIBGYOR HIGH BALEWADI, PUNE
Class : Class 6
ans is d because it is transparent which allows light to pass, it doesn't observe light but transmits all light

Ans 21:

Ashwak from Cambridge, Jalandhar
Class : Class 9
What in the freaking world . I am surprised that these dumb idiots can even host international and national olympiads . Even a 5 year old could get the answer right . I won't be surprised if they give the answer 22 of the question 2 2 . I am telling you we are wasting money on these damn question papers

Ans 22:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Answer is D

Ans 23:

Pratheek from Null, Null
Class : Class 4
Option D. All of the above.

Ans 24:

Ishayu Mukherjee from Don Bosco Park Circus, Kolkata
Class : Class 6
The answer is wrong. The correct answer is D

Ans 25:

HARSHAL KUTE from cambridge school buldhana, Buldhana
Class : Class 6
ans is d

Ans 26:

pranavramesh from sri chaitanya techno school, Chennai
Class : Class 6
sof the answer is ddd so many times i am really fed up of your wrong answers and that is really very shamful on you.

Ans 27:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 10
these days sof olympiad trainer has gone mad. in one test, i got 4 perfectly wrong question . and now this . this adds up to fivei do not know what is the problemans should be ddddddddd!!!!!

Ans 28:

from ,
Class :
d is the answer but the trainer is showing b as answer air reflects light that is why the sky is blue

Ans 29:

from ,
Class :
Answer is D as air it neither absorbs or reflects light,its almost transparent,it transmits the whole of light.

Ans 30:

Agrim Jai from Modern Bharakhamba, Delhi
Class : Class 7
D

Ans 31:

Naisha from Brilliant public school b, Bilaspur
Class : Class 8
D

Ans 32:

satwik patnaik from DPS Rourkela, Rourkela
Class : Class 7
And is b

Ans 33:

khushi Joshi from Svkm , Mumbai
Class : Class 10
Ans is D as air is all of the above

Ans 34:

from ,
Class :
Answer is d

Ans 35:

Aarnav Grover from Anand Niketan Shilaj, Ahmedabad
Class : Class 9
I think its D not B

Ans 36:

Tanishtha from DPS, Greater Noida
Class : Class 7
ans is d

Ans 37:

Advik from DPS Patna, Patna
Class : Class 4
its got to be ddddd!!

Ans 38:

Arsh from Lahs, Gwalior
Class : Class 3
ans is d sof !!!!!!!!!!!!! ans is d

Ans 39:

Videh Jain from Bluebells School International, Delhi
Class : Class 6
d is the ans

Ans 40:

Pratheek from Null, Null
Class : Class 4
Option D. All of the above.

Ans 41:

Bhabani Prasad from Narayan School, Kolkata
Class : Class 6
D is the ans as air is matter and is very transparent.

Ans 42:

Aditya Sai Kedarisetty from Sri Kumarans childrens Academy DKS, Bangalore
Class : Class 7
The answer is 'D' option, 'All of the above'. It is so because Air is not visible because it neither absorbs nor reflects light, it transmits whole of light. Dust particles in air is visible as they reflect light. Air is almost transparent substance. It is not dust to be visibile. It is air, it is completely transparent.

Ans 43:

malhar thorve from city internqtional school, satara road, pune
Class : Class 7

Ans 44:

AJAY LAHOTI from SPRINGDALES DUBAI, Dubai
Class : Class 6
I should be d

Ans 45:

Parth Kaushish from MDPS, Faridabad
Class : Class 6
its D come on two total mistakes in one test

Ans 46:

niuv from meridian, Hyderabad
Class : Class 6
ANS IS D

Ans 47:

Mihika Hivarekar from Global Indian International School, Pune
Class : Class 7

Post Your Answer

Swati from Ryan, Bengaluru
Subject :NSO    Class : Class 8

Ans 1:

N Sankar Narahari from Madhavakripa English Nursery and Higher Primary School, Manipal
Class : Class 7
everybody just copy and paste it, can anyone explain in an easier way

Ans 2:

Gokul Warrier M from SRI KUMARANS MALLASANDRA, BANGALORE
Class : Class 9

Ans 3:

Vihaan Nair from Ambassador School, DUBAI
Class : Class 8

Ans 4:

sk from psbb millennium school, Chennai
Class : Class 9

Ans 5: (Master Answer)

from ,
Class :
The correct answer is B.

Ans 6:

from ,
Class :
The common error is to think that pressure at 0.4h above the surface of the reservoir of mercury is 0.4 times the atmospheric pressure. The pressure at p is caused by the weight of mercury above point P. Thus preesure at P is equal to : 0.6x 100000 = 60000 Pa

Ans 7:

Harsh Kant from Gyan Ganga Educational Academy, Raipur
Class : Class 9

Ans 8:

N Sankar Narahari from Madhavakripa English Nursery and Higher Primary School, Manipal
Class : Class 7
answer is b

Ans 9:

Sumedha Mishra from xyz, School, Pune
Class : Class 8

Post Your Answer

X Y
(A) Wool Silk
(B) Cotton Rayon
(C) Cotton Silk
(D) Silk Wool