National Science Olympiad Forum By SOF Olympiad Trainer - Page 662
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Gauri Singh from St Johns School Marhauli, Varanasi
Subject :NSO    Class : Class 5

Ans 1:

Arnav kaul from Chirec, Hyderabad
Class : Class 2

Ans 2:

Shreyas Singh from Podar International School, Pune
Class : Class 6

Ans 3:

Mannat Verma from Vivek High School , Chandigarh
Class : Class 6
Who do you think you are?

Ans 4:

Daivik Goel from Delhi public school , Vadodara
Class : Class 4
In the picture there is a pattern . Between problem figure 1&2,it moves 1 step ahead.Between problem figure 2&3, it moves 2 steps ahead.Between problem figure 3&4,it moves 3 steps ahead.Between problem figure 4&5,it moves 4 steps ahead.So in the next problem figure 5&6,it will move 5 steps ahead .So the right option is-(A). It is so easy!!!!!!!!!!!!!!!!! Put your brains!!!!!

Ans 5:

Shreyas Singh from Podar International School, Pune
Class : Class 6

Ans 6:

Zayed Zaman from Global indian international school, Singapore
Class : Class 5
THERE'S A WEIRD PATTERN IN THERE... in figure 1 and two they skip a figure, in figure 3 and 4 they skip two figures and so on so forth.

Ans 7:

Annavi Bajpayee from DPS Sector 19, Faridabad
Class : Class 7
A Add 45 degrees in subsequent figures. Add 225 deg in the fourth fig to reach at A

Ans 8:

Raksheet Shah from Swami Vivekanad International School, Mumbai
Class : Class 8
oh yeah

Ans 9:

Rimi from TLISK, pune
Class : Class 9
I agree with you Zayed

Post Your Answer

Sagar G V from Tuto Bytes, Hyderabad
Subject :NSO    Class : Class 4

Ans 1:

S from , JAJAPUR
Class : Class 4

Ans 2:

k tagore from montessori school, KURNOOL
Class : Class 3

Ans 3:

somesh from Centre point katol road, Nagpur
Class : Class 6
C

Ans 4:

k tagore from montessori school, KURNOOL
Class : Class 3

Ans 5: (Master Answer)

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

Ans 6:

Vibha from Birla Public School, Doha
Class : Class 7
THE CORRECT ANSWER IS C

Ans 7:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
THE CORRECT ANSWER IS C OPTION

Post Your Answer

Gauri Singh from St Johns School Marhauli, Varanasi
Subject :NSO    Class : Class 5

Ans 1:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is A because lungs send oxygen-rich blood to the heart and this oxygen-rich blood is sended to all body parts and the carbondioxide-rich blood goes back to the heart from the body this carbondioxide-rich blood is sended to the lungs.

Ans 2:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8

Post Your Answer

Navneet Mathur from St Mary Convent Senior Secondary , Ujjain
Subject :NSO    Class : Class 7

Ans 1:

Medha Bhutani from Christ Academy, Bengaluru
Class : Class 9
4 th blank will be filled with fertilisation correct ans is b Pollen grains are deposited on stigma and not style

Post Your Answer

Arkoprava Dey from Techno India Group Public School, Coochbehar, Coochbehar
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

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

Post Your Answer

ANSHUMAN RAJ from ST.THERESA'S CONVENT SR.SEC.SCHOOL KARNAL, KARNAL,HARYANA
Subject :NSO    Class : Class 3

Ans 1:

ANWESHA THAKUR from DPS SECTOR 132 NOIDA, NOIDA
Class : Class 7

Ans 2:

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

Ans 3:

Anagha from DPS BANGALORE NORTH, Bengaluru
Class : Class 3
It should be D

Ans 4:

Nivedha from Greenwood High, Bengaluru
Class : Class 3
HE DID NOT EXPLAIN.

Ans 5:

Arnav Raj Sharma from Dpsvk, Gurgaon
Class : Class 9
kunal is wrong

Ans 6:

Vedansh from Akshara International school, Phne
Class : Class 3
c is the correct answer

Ans 7:

Arnav Raj Sharma from Dpsvk, Gurgaon
Class : Class 9

Ans 8:

Abhilash from ,
Class : Class 3
ahh... very easy answer is d

Ans 9:

SS from meridian, hyderabad
Class : Class 5
abcd are correct

Ans 10:

Aditri Dixit from TCIS, Bangalore
Class : Class 3

Ans 11:

Ram Prasanna from Basil Woods International, Hyderabad
Class : Class 3
D

Ans 12:

Aditri Dixit from TCIS, Bangalore
Class : Class 3

Ans 13:

Aditri Dixit from TCIS, Bangalore
Class : Class 3
NA

Ans 14:

Shruti from ,
Class : Class 1
D HE GAVE EXPLANATION

Ans 15:

Yatindra G from SBOA, Chennai
Class : Class 4
c maybe????

Ans 16:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 2

Ans 17:

Aneesh Balaji from BVBARR school, Hyderabad
Class : Class 9
c is the ans

Post Your Answer

arnav reddy from oakridge international school, hyderabad
Subject :NSO    Class : Class 3

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

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 5:

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

Ans 6:

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

Ans 7:

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

Ans 8:

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

Ans 9:

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

Ans 10:

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 11:

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

Ans 12:

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

Post Your Answer

Vivek Gulavani from Innisfree House School, Bengaluru
Subject :NSO    Class : Class 7

Ans 1:

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

Ans 2:

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

Ans 3:

Adhrit from CHSV, Chennai
Class : Class 8
Definitely D

Ans 4:

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

Ans 5:

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

Ans 6:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 10
The amount of water also matters right

Ans 7:

Shubham Ashish Kulkarni from APEEJAY PITAMPURA, DELHI
Class : Class 8
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 8:

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

Ans 9:

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 10:

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

Ans 11:

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

Ans 12:

Kamal Manchenella from Delhi Public School, Hyderabad
Class : Class 7
I feel that it is D

Ans 13:

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

Ans 14:

Rithvik from BVM Global, Chennai
Class : Class 9
d

Ans 15:

Shriyans from DPS Agra, Agra
Class : Class 8
D

Ans 16:

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

Ans 17:

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

Ans 18:

shreya from GIIS, KualaLumpur
Class : Class 5

Ans 19:

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

Ans 20:

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

Ans 21:

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

Ans 22:

ALICE from Delhi Public School, UDAIPUR
Class : Class 9

Ans 23:

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

Ans 24:

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

Post Your Answer

Aswath Krishna from DPS EAST, Bengaluru
Subject :NSO    Class : Class 6

Ans 1:

VIJAYA SREYAS B from NARAYANA OLYMPIAD SCHOOL KUKATPALLY, HYDERABAD
Class : Class 6
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 2:

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

Ans 3:

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

Ans 4:

Aarush Goyal from D.A.V Pblic school, Sector 14, Faridabad
Class : Class 6
A is the correct answer

Ans 5:

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 6:

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

Ans 7:

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

Ans 8:

ridhima from mdps, faridabad
Class : Class 6

Ans 9:

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

Ans 10:

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 11:

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

Ans 12:

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

Ans 13:

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

Ans 14:

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 15:

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 16:

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

Post Your Answer

Vivek Gulavani from Innisfree House School, Bengaluru
Subject :NSO    Class : Class 7

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

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

Ans 5:

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

Ans 6:

Aksh Swarnkar from National Center for Excellence CVR, Bangalore
Class : Class 8

Ans 7:

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

Ans 8:

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

Ans 9:

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

Post Your Answer