National Science Olympiad Forum By SOF Olympiad Trainer - Page 443
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Bhramana Roy from Glendale Academy International, Hyderabad
Subject :NSO    Class : Class 8
Question. Consider the following statements and select the option which correctly identifies true (T) and false (F). (i) Part that gives colour to the eye is iris. (ii) Transparent outer layer that refracts light is lens. (iii) Retina is a light sensitive layer of the eye. (iv) Cornea is a region without any sensory cells. (i) (ii) (iii) (iv) A: F T F T B: T F T T C: T T F F D: F F T T Given answer is D. But Iris is the coloured part of the eye, thus giving it colour. Solution says retina gives it colour, which is false. The Retina has photoreceptors called cones and rods. Cones are sensitive to red, green and blue light, this enabling us to see colour. While the iris gives colour to the eye, the retina enables the eye to see colour. Thus Option B should be the answer. Unless there any explanation for this?

Post Your Answer

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

Ans 1:

Rahul Jha from Delhi Public School BN, Bengaluru
Class : Class 8

Ans 2:

ANUSHKA SHARMA from CAMBRIDGE COURT WORLD SCHOOL, JAIPUR
Class : Class 8

Ans 3:

Labonyo Sen from Calcutta Girls High School, KOLKATA
Class : Class 8

Ans 4:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 6

Ans 5:

Ved Sinha from DL DAV MODEL SCHOOL, New Delhi
Class : Class 8

Ans 6:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 6

Post Your Answer

Bibhu Sagar from VIVEKANANDA VIDYA MANDIR, Ranchi
Subject :NSO    Class : Class 8

Ans 1:

Ishat from DPS, GURUGRAM
Class : Class 10
incorrect answer.

Ans 2:

Student from School, City
Class : Class 8
The correct answer is A as sphere P will acquire a positive charge due to conduction. This is also written in the solution.

Ans 3:

Aradhya from St Thomas School, New Delhi, New Delhi
Class : Class 4

Ans 4:

Anushka Srivastava from Convent Of Jesus And Mary , Dehradun
Class : Class 8
It is A For sure

Ans 5:

Zach from Frank Anthony public school, Bangalore
Class : Class 8
Answer is (A). This is also explained in the solution

Post Your Answer

Anushka Srivastava from Cjm, Dehradun
Subject :NSO    Class : Class 6

Ans 1:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
It is C because we don't REMOVE the pure or harmless substances, but OBTAIN them.

Post Your Answer

Gatik Arora from Vivek High School, Mohali
Subject :NSO    Class : Class 7

Ans 1:

priyanka from kendriya vidalaya kathmandu, JHAJJAR
Class : Class 8
option C

Ans 2:

Shreenath Rajesh Nair from J H A S V Surat, Surat
Class : Class 7
THE ANSWER IS C as in both the circuits volltage - same arrangement - parallel

Ans 3:

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata
Class : Class 7

Ans 4:

Tejas Agarwal from Amity International School , Noida
Class : Class 7
C

Ans 5:

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata
Class : Class 7
C

Ans 6:

Can I get Rank 35 darryl from Global Indian international school, Brawl stars
Class : Class 8

Ans 7:

Shreenath Rajesh Nair from J H A S V Surat, Surat
Class : Class 7
THE ANSWER IS C as in both the circuits volltage - same arrangement - parallel

Ans 8:

Krishna Srivastava from manipal public school, lucknow
Class : Class 7
Option c

Ans 9:

priyanka from kendriya vidalaya kathmandu, JHAJJAR
Class : Class 8
option C

Post Your Answer

Gatik Arora from Vivek High School, Mohali
Subject :NSO    Class : Class 7

Ans 1:

Harshdeep roy from Bhavans School , Nagpur
Class : Class 7

Post Your Answer

Aarush Chakrabortty from Narayana e-Techno School, South City 2, Gurugram
Subject :NSO    Class : Class 2

Ans 1:

Aarush Chakrabortty from Narayana e-Techno School, South City 2, Gurugram
Class : Class 5
the hospital is at the left because on the it sign board is showing that it is at the left.

Ans 2:

Aarush Chakrabortty from Narayana e-Techno School, South City 2, Gurugram
Class : Class 5

Post Your Answer

Riddhi from St Ursula high school, PIMPRI CHINCHWAD
Subject :NSO    Class : Class 6

Ans 1:

Pratul Kumar Sahoo from Presidium, Gurugram
Class : Class 4
i did option c but mistakely

Ans 2:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
i also did option c

Ans 3:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
I ticked opt. C in my test bank...

Ans 4:

Ashwak from Cambridge, Jalandhar
Class : Class 8
C

Ans 5:

Advay Das from Delhi Public School, Gurgaon
Class : Class 4

Ans 6:

Dushyant Singh from Shree Ram Centenial School, Indore
Class : Class 9
pratul kumar c is correct

Ans 7:

Rishik De Sarkar from Delhi Public School Gurgaon, Gurgaon
Class : Class 7
This is a forum, not a general chat. pls use forum respectively

Ans 8:

Anushka Srivastava from Cjm, Dehradun
Class : Class 7
I DID OPTION C

Ans 9:

Pratul Kumar Sahoo from Presidium, Gurugram
Class : Class 4
c

Post Your Answer

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

Refer to the given food components (P-S) and their respective sources.
P - Butter, Nuts, Ghee
Q - Eggs, Soybean, Pulses
R - Wheat, Rice, Potato
S - Spinach, Apple, Pomegranate
Identify the food components P-S and select the incorrect statement regarding them.

A P gives more energy than Q, R and S.
B Q helps in generation of new cells of muscles, blood and skin.
C Q and R have starch, that gives energy to do work.
D S is required in very small quantities for proper functioning of the body.

Ans 1:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 2:

Ishan sandip chaudhari from Divine Child International School, Ahmedabad
Class : Class 5
Ans. is C only

Ans 3:

Manasvi Nagpal from blooming dales international school, sri ganganagar
Class : Class 5
option d

Ans 4:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is D because spinach, apple and pomegranate have vitamins and minerals. We should take fats in very small quantities because taking more amount of fats will make us obese.

Ans 5:

Shaurya Shrivastava from Amanora school, Pune
Class : Class 6
answer is D and C

Ans 6:

Arnav kaul from Chirec, Hyderabad
Class : Class 2

Ans 7:

Raunak Raj from Bal Bharti Public School, Navi Mumbai
Class : Class 5
ans can be both C

Ans 8:

Ishan sandip chaudhari from Divine Child International School, Ahmedabad
Class : Class 5
Ans. is D only,I am sorry for saying C.

Ans 9:

Yashashree Somdatta Kulkarni from Delhi Public School, Nashik
Class : Class 5
option D is right

Ans 10:

Ayush Ahirrao from Chavara public school, Dhule
Class : Class 5
Option C

Ans 11:

D M Sarvesh from Narayana Group of Schools, Mogappair
Class : Class 4

Ans 12:

sanvi from sjs, Sonbhadra
Class : Class 6
option d

Ans 13:

sanvi from sjs, Sonbhadra
Class : Class 6
option c

Ans 14:

adwik asutosh mallick from DONBOSCO, KOLKATA
Class : Class 5
sussy d baby

Ans 15:

Mukta Pundir from ,
Class : Class 5
It is c as starch is carbs not protein and d is vitamin which is required in milligrams which is very little so c is correct also why is this adwik guy saying these useless words

Ans 16:

Mathamagician from BGSNPS, Bengaluru
Class : Class 6
D for sure.\

Ans 17:

Atiksh Shrivastava from St. Francis School Greater Noida , Greater Noida
Class : Class 5
Option C is incoreect

Ans 18:

vayurve gowda from narayana group of schools, chennai
Class : Class 6
option d

Ans 19:

Anikait Yadav from MLZS, Chennai
Class : Class 7
OPTION C , Carbohydrates (R) have starch which gives energy to the body to do work. Proteins (Q) do not have starch. So, this option is Incorrect.

Post Your Answer

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

Krishna dropped a piece of stone and one teaspoon of sugar into a beaker containing water. He noticed that after sometime only the stone remained at the bottom. Which of the following conclusions can be made by Krishna?

A Sugar is soluble and heavier than water whereas stone is insoluble and lighter.
B Sugar is soluble and lighter than water whereas stone is insoluble and heavier.
C Both sugar and stone are heavier than water. However, sugar is soluble whereas stone is not.
D Both sugar and stone are lighter than water. However, sugar is soluble whereas stone is not.

Ans 1:

SIDDHARTH UPADHYAY from KENDRIYA VIDYALAYA EZHIMALA, KANNUR
Class : Class 4

Ans 2:

PARVATHI P from St Aloysius Gonzaga, Mangalore
Class : Class 7

Ans 3:

Siddhanth Subramanian from Global Indian International School , Singapore
Class : Class 7
ans is c

Ans 4:

Ashwak from Cambridge, Jalandhar
Class : Class 8

Ans 5:

Agastya Tripathi from dps gurgaon, Gurgaon
Class : Class 4

Ans 6:

Bhuvana Kumar Gopal from St Thomas Residential School, Trivandrum
Class : Class 5
ANS IS B

Ans 7:

Hari Govind from Delhi Public School Chandigarh , Chandigarh
Class : Class 6
c is the answer

Ans 8:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is B

Post Your Answer