National Science Olympiad Forum By SOF Olympiad Trainer - Page 619
  1. Home
  2. /  Forum

User Forum

Ask Your Question
shivan iyer from dr pillai global academy, MUMBAI
Subject :NSO    Class : Class 4

Ans 1:

Sandipta Bhattacharjee from Sri Ram Narayan Singh Memorial High School, Kolkata
Class : Class 5
Answer will be A). It is because, humus is found on topsoil and not in deep layers of soil.

Ans 2:

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

Ans 3:

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

Ans 4:

VANSH GARG from DPSG, GHAZIABAD
Class : Class 4
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Ans 5:

Ameya Dhuri from Birla Public School, Doha
Class : Class 8
I don't know

Ans 6:

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

Ans 7:

S Malhotra from SFS , New Delhi
Class : Class 5

Post Your Answer

Pranava Sreeyush from Kennedy High the Global School, Hyderabad
Subject :NSO    Class : Class 8

Ans 1:

Soham from Vibgyor high, Pune
Class : Class 8

Ans 2:

Daksha Swaminathan from Horiozon Scholars and Neo Kids, Mumbai
Class : Class 8

Ans 3:

Harshit from Army Public School, Lucknow
Class : Class 9
Hi friend. The ans is b. It is the hottest planet because of large amount of CO2 in it which causes greenhouse effect. It is true that it reflects sunlight but this is not the reason for it being hot. HOPE THIS HELPS YOU!!!

Ans 4:

Yash Bindal from Global Indian International School, Singapore
Class : Class 9

Ans 5:

Neh singla from Delhi public school, Chandigarh
Class : Class 5
hi

Post Your Answer

Pranava Sreeyush from Kennedy High the Global School, Hyderabad
Subject :NSO    Class : Class 8

Ans 1:

Ashvik Banerjee from Mount Litera Zee School , Vasco
Class : Class 9
confusing

Ans 2:

Student from School, City
Class : Class 8
As per solution, 243 days is longer than a year.

Ans 3:

Pratyush Singh from St. John's School Marhauli, Varanasi
Class : Class 8
Hii, This means that you gotta name the planet which takes more than one Earth year i.e. more than 365 days to complete one rotation on its axis...Answer is Jupiter

Ans 4:

NAMAN HARITASH from DPS DLF CITY, GURGAON
Class : Class 9
the answer is not correct

Post Your Answer

Siddharth Mahesh from mdav public school , Hyderabad
Subject :NSO    Class : Class 8

Ans 1:

A Venkata Sai Pranav from Podar International School, Bhusawal
Class : Class 9

Ans 2: (Master Answer)

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

Ans 3:

Shaurya Verma from NPS HSR, Bangalore
Class : Class 9

Ans 4:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10
It says in the second test tube that there is a colourless solution of Y SO4and granules of Y! It should be colourless solution of X SO4 and granules of Y.

Ans 5:

Akshara from NPS, Bengaluru
Class : Class 8
the figure given is wrong.. the second figure says - granules of y... it should have been 'granules of x''

Post Your Answer

GAURAB DASH from St Mary's convent school, Baripada
Subject :NSO    Class : Class 6

Ans 1:

VIJAYA SREYAS B from NARAYANA OLYMPIAD SCHOOL KUKATPALLY, HYDERABAD
Class : Class 6
P,R,T. By closing these switches and none of the other open ones, one wire is connected to the filament no 1 of the bulb but 2 to the doorbell. This gives only sound energy.

Ans 2:

Aarush Goyal from D.A.V Pblic school, Sector 14, Faridabad
Class : Class 6
B

Post Your Answer

Soham from , Ghaziabad
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

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

Post Your Answer

smaayan from DPSBN, Bengaluru
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

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

Ans 2:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5
B

Ans 3:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi
Class : Class 7
B

Post Your Answer

Riya Singhani from BVB vidhyashram, jaipur
Subject :NSO    Class : Class 8

Ans 1:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 7
correct is B

Ans 2:

Aanya from DAV, Gurgaon
Class : Class 8

Ans 3:

Bipasana from KV IIT Kanpur, Kanpur
Class : Class 9
I think it's B??

Ans 4:

Dhanya Krishnaji from ISG, Muscat
Class : Class 8
IT’S B!! SINCE WHEN DID THE CORNEA BECOME THE PART WHICH GIVES LIGHT??

Ans 5:

Satvik Mehta from St Andrews school Bowenpally, Secunderabad
Class : Class 4
Yes the answer is wrong it should be b.iris gives colour to the eye not the cornea

Ans 6:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
IT IS OPTION (B)

Ans 7:

Dhanya Krishnaji from ISG, Muscat
Class : Class 8
Since when did cornea become the part which gives colour? I’m lost ,shouldn’t the answer be b?

Ans 8:

Gaurish Singla from DPS School Sector 19, Faridabad
Class : Class 8
Answer should be (b)

Ans 9:

Rishith Sunil from BVM Global BHS, Chennai
Class : Class 8
D

Ans 10:

Vartika Agarwal from Phoenix world school, Pune
Class : Class 9
seriously I am confused.. what should I follow?!?!?!.. The book or this?.. book says that iris gives colour to eyes and online says RETINA?!?!.. my mind is blown.. if this happens in the actual exam marks will be reduced drastically.. I am confused and angry

Ans 11:

Tanmayi kiran giri from airforce force public school Vayusena Nagar, Nagpur, nagpur
Class : Class 9
same even i think it should be b bcuz the iris gives colour to the eye and not the retina

Ans 12:

Akshara from NPS, Bengaluru
Class : Class 8
I have done this test many times, and this issue is still not rectified.. It is the iris which gives colour to our eye and not the retina. Please look into this issue!

Ans 13:

Satvik Mehta from St Andrews school Bowenpally, Secunderabad
Class : Class 4
Fdvdfvdfbrfbfgbfgbt

Ans 14:

Kashvi Rawat from Gear Innovative International School, Bengaluru
Class : Class 3
not B? I'm pretty sure the iris gives colour to the eye...

Ans 15:

Vayun from NPS HSR, Bengaluru
Class : Class 8
Answer is b as Cornea does not give colour to eye

Ans 16:

Siddharth Mahesh from mdav public school , Hyderabad
Class : Class 8

Ans 17:

Akshara from NPS, Bengaluru
Class : Class 8
Correct answer is B. It is the iris which gives colour to the eye ( not retina)Retina forms the inverted image .

Ans 18:

Bhramana Roy from Glendale Academy International, Hyderabad
Class : Class 8
I think the given answer is wrong, as it states the correct answer is option D. Option D says Iris does NOT give colour to the eye, but actually, the iris is the coloured part of the eye. Thus, the correct option should be option B.

Ans 19:

Chatresh ramasai gudi from Bgsnps , Bangalore
Class : Class 8
It’s b

Ans 20:

Kriday from KDAV, Jamnagar
Class : Class 4
yes the answer is wrong because this states that the cornea gives colour to eyes which is wrong

Ans 21:

Aanya from DAV, Gurgaon
Class : Class 8
The answer will be option {B} because Iris gives color to the eyes.

Ans 22:

Aryan Raina from MGN Public School, Jalandhar
Class : Class 8
this answer is wrong correct answer is b

Ans 23:

Anusha from LBS School , Kota
Class : Class 10
The correct answer is B. Iris gives color to the eye.

Ans 24:

aditya arora from Heritage Experiential Learning School, gurugram
Class : Class 8
I agree, it should ideally be B, as iris IS indeed the part of the eye that gives it colour

Ans 25:

The Address from Somaiya, Mumbai
Class : Class 6

Ans 26:

Antarik Maity from Bharatiya Vidyabhaban, Kolkata
Class : Class 8
The correct answer should be option(B) as Iris is the part of the eye which gives its color and not the retina as retina is the innermost part of the eye. But in the solution it is given that retina of the eye gives its color. Iris contains colored pigments which give the eye it s color.

Ans 27:

Neh singla from Delhi public school, Chandigarh
Class : Class 5
yes you're right

Post Your Answer

tanmay from amaatra academy, bangalore
Subject :NSO    Class : Class 5

Ans 1:

YASH SAH from DELHI PUBLIC SCHOOL MIS DOHA, Doha
Class : Class 8

Ans 2:

UMANG from SPRING DALE COLLAGE, Lucknow
Class : Class 8
why it can't be distillation ?

Post Your Answer

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:

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

Ans 3:

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 4:

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

Ans 5:

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 6:

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

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:

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

Ans 9:

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

Post Your Answer