National Science Olympiad Forum By SOF Olympiad Trainer - Page 630
  1. Home
  2. /  Forum

User Forum

Ask Your Question
kshitij from st anslem senior secondary school, Jaipur
Subject :NSO    Class : Class 7

Ans 1:

Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Class : Class 8
E(energy)=m(mass)*c(speed of light in vacuum)2.... speed of light in vacuum=3.00 x 108(10x10x10x10x10x10x10x10).... It means that there is much more energy stored inside the nucleus of an atom than in its valence electrons. The energy released from splitting an atom is much higher than that of breaking electron bonds.

Ans 2:

Pisal Dhruv from Veer Bhagat Singh International School, Mumbai
Class : Class 7
in simple terms "Energy equals mass times the speed of light squared." On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing. Under the right conditions, energy can become mass, and vice versa.

Ans 3:

Pisal Dhruv from Veer Bhagat Singh International School, Mumbai
Class : Class 7
E = mc2. An equation derived by the twentieth-century physicist Albert Einstein, in which E represents units of energy, m represents units of mass, and c2 is the speed of light squared, or multiplied by itself.

Post Your Answer

kshitij from st anslem senior secondary school, Jaipur
Subject :NSO    Class : Class 7

Ans 1:

Dheeraj from Sri Sri Ravishankar Vidya Mandir, Bangalore
Class : Class 7
Energy=mass x mass x capacity x capacity

Ans 2:

abhinav from fitjee world school, Hyderabad
Class : Class 8
Energy=mass*(speed of light)^2

Post Your Answer

Vaishnavi from Gear International School, Bengaluru
Subject :NSO    Class : Class 6

Ans 1:

Vihan agarwal from Bal Bharati Public School , Delhi
Class : Class 8
THIS IS PRETTY ADVANCED STUFF FOR KIDS OF CLASS 6

Ans 2:

Bhavtosh Tripathi from Maneckji Cooper Education Trust School, Mumbai
Class : Class 9
B

Ans 3:

Pavani Soni from VYDEHI , Bengaluru
Class : Class 8

Ans 4:

Manvi Mundepi from Montfort School Roorkee, Roorkee
Class : Class 9
EXPLAIN

Ans 5:

Aadhira from velammal new gen school, Medavakkam, Chennai
Class : Class 6
(B) is the correct answer.

Ans 6:

Parth Kaushish from MDPS, Faridabad
Class : Class 6
b is correct if an explanation is required then click on solution

Ans 7:

Rishab from OWS, New Delhi
Class : Class 7

Ans 8:

Vihaan Binaykia from Riverside, AHMEDABAD
Class : Class 5
C

Ans 9:

Eashta Khodke from Elpro International School Chinchwad Pune, Pune
Class : Class 8
the ans will be B as the question tells us that the opaque dot is in the center ,IN THE CENTER aka it will be same all over

Ans 10:

SAMRA BISWAS from KENDRIYA VIDYALAYA BARRACKPORE AIRFORCE, BARRACKPORE
Class : Class 9
[B] is the correct answer......

Ans 11:

Pavani Soni from VYDEHI , Bengaluru
Class : Class 8

Ans 12:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 13:

Smita De from Bishop Cotton Girls School, BANGALORE
Class : Class 5
explanation

Ans 14:

A S Neeraj from K V 2, Chennai
Class : Class 6

Ans 15:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
please explain

Post Your Answer

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Subject :NSO    Class : Class 6

Ans 1:

Pratheek from Null, Null
Class : Class 4
Option B

Ans 2:

Krithi Manasvini from Alwin Memorial Public School, Chennai
Class : Class 7
Option b is right because Figure (iii) is periscope which is used to see around the corners. It is based upon the principle of rectilinear propagation of light and reflection of light.

Ans 3:

harmit from goldcrest high, Mumbai
Class : Class 6

Ans 4:

Shreyansh Gupta from MVN, faridabad
Class : Class 7
The answer is B according to my 100000 IQ brain ez pz

Ans 5:

A Andrew from Lalaji Memorial Omega International School, Chennai
Class : Class 5
option b . the third picture is the answer

Ans 6:

Pratheek from Null, Null
Class : Class 4
Option B

Ans 7:

srivats from psbb, chennai
Class : Class 6
there are mirrors on the 3 figure so ans is option B

Ans 8:

a from a, Ghaziabad
Class : Class 7
The third picture(option A) may be the answer.

Ans 9:

Anshuman Mishra from kv no 3, Bhubaneswar
Class : Class 7
to my knowledge ans is b

Ans 10:

Sarthak yadav from RPS, Mahendragarh
Class : Class 9
hmm...............answer from my knowlege is B

Ans 11:

Sai Trinayanee from NPS, Chennai
Class : Class 6

Ans 12:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 10
hmmmm

Ans 13:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 10

Ans 14:

Anshuman Mishra from kv no 3, Bhubaneswar
Class : Class 7
to my knowledge ans is b

Ans 15:

a from a, Ghaziabad
Class : Class 7
But I don't understood one thing that 'How the item will allow me to see around a corner from where I am standing?

Ans 16:

A Andrew from Lalaji Memorial Omega International School, Chennai
Class : Class 5
option b . the third picture is the answer

Post Your Answer

Saathvik Sriram from euroschool whitefield, Bangalore
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is D.

The given graph shows that the temperature of water is not increasing with time from period ‘X’ to ‘Y’, which shows that drum. water has attained its boiling point (100°C). On reaching boiling point, the temperature of water does not increase further and water converts into vapour.


Ans 2:

Thaneesha from Radcliffe School, Kharghar
Class : Class 7

Ans 3:

Eklavya Gondule from DPS Bhilai, BHILAI
Class : Class 7

Post Your Answer

Deeptajit Roy from Gems Modern Academy, Dubai
Subject :NSO    Class : Class 5

Ans 1:

Anantjit Chander from Apeejay School, Sector 15, Faridabad
Class : Class 10
(B) or (D)?

Ans 2:

Dhriti Das Purkayastha from Inventure Academy, Bangalore
Class : Class 7
PLS EXPLAIN

Ans 3:

Ahaan Mittal from Primus Public School, Bengaluru
Class : Class 8
I got it wrongBut i figured that answer is d

Ans 4:

Ayushmaan from D, B
Class : Class 5

Ans 5:

Rimi from TLISK, pune
Class : Class 9
Stem carries water to all parts of plants

Ans 6:

Shravya Desai from Maneckji Cooper, Mumbai
Class : Class 5
What is the solution of this question. It is not appearing

Ans 7:

Arnav kaul from Chirec, Hyderabad
Class : Class 2

Ans 8:

Shivam Gupta from Army Public School, Noida
Class : Class 5
where is the solution

Ans 9:

Bhavya from ABC, Delhi
Class : Class 7
I got it correct DRITHI. super easy question

Ans 10:

Dhriti Das Purkayastha from Inventure Academy, Bangalore
Class : Class 7
did anyone get this correct

Ans 11:

Kiara Arora from Kumarans, Bangalore
Class : Class 6

Ans 12:

Vedashri Raja from NPS INR, Bengaluru
Class : Class 6

Ans 13:

Parboni chatterjee from Carmel convent High School, Durgapur
Class : Class 1

Ans 14:

Dhriti Das Purkayastha from Inventure Academy, Bangalore
Class : Class 7
ya

Ans 15:

SIDDHARTH KUMAR CHATTERJEE from NAVY CHILDREN SCHOOL , CHICALIM
Class : Class 7
The stem absorbed the color along with the water, so some parts of the stem and the flower turned blue or red.

Ans 16:

Piyush Kumar Pruseth from Sri Aurobindo Integral Education and Research Centre, Rajgangpur
Class : Class 5
The answer is D

Post Your Answer

KALLOL PAL from TIGPS Mankundu , CHANDANNAGAR
Subject :NSO    Class : Class 5

Ans 1:

NIRANJANA from INDIRA NATIONAL SCHOOL, PUNE
Class : Class 7
Wind is a form of renewable energy.

Ans 2:

KALLOL PAL from TIGPS Mankundu , CHANDANNAGAR
Class : Class 9
wind

Post Your Answer

tauseef from pearl school, doha
Subject :NSO    Class : Class 5

Ans 1:

OISHIK KUNDU from Delhi Public school North kolkata, baranagar
Class : Class 4
just try to guess

Ans 2:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is C. See PERSON in number positions: 16 05 18 19 15 14. Now keep the numbers in ascending order: 05 14 15 16 18 19:ENOPRS. Now OLYMPIAD in number positions: 15 12 25 13 16 09 01 04. Now keep the numbers in ascending order: 01 04 09 12 13 15 16 25:ADILMOPY.

Ans 3:

Mridul Jain from Shishukunj International School Indore, Indore
Class : Class 9
What is the method for solving this?

Ans 4:

SOMDATTA BHATTACHARYA from Delhi Public School, Dhaligaon, Bongaigaon
Class : Class 5

Ans 5:

Hitanshi Behera from Loyola School , Bhubaneswar
Class : Class 4
really never thought of doing in this method though

Ans 6:

Nishchay Gupta from Cambridge Court World School, Jaipur
Class : Class 6

Ans 7:

Anika Saha from New Town School, KOLKATA
Class : Class 6
what is the method to solve this ? i did not understand this question

Ans 8:

Inez from Vibgyor High Airoli, bangalore
Class : Class 5
Place all the letters in alphabetical order

Ans 9:

Krethick Ravichandran from FIITJEE GLOBAL SCHOOL , India
Class : Class 9
me too

Ans 10:

Siddharth Laxmisha from The Study Lecole Internationale, PUDUCHERRY
Class : Class 8
Write the word in alphabetical order.

Ans 11:

Samyuktha from Sri Chaitanya, Chennai
Class : Class 7
I don't know either

Ans 12:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 8
Oooooooo.......... Smart

Ans 13:

tanmay chaudhry from BAL BHAVAN PUBLIC SCHOOL, New Delhi
Class : Class 4
i dont know any method to solve this but i have one thing to guess

Ans 14:

tauseef from pearl school, doha
Class : Class 5

Post Your Answer

Gokulakrishnan from Rosemary public school, Tirunelveli
Subject :NSO    Class : Class 9

Ans 1:

Yash from Bharat vidalaya , Buldhana
Class : Class 9
Option a is correct

Ans 2:

Gokulakrishnan from Rosemary public school, Tirunelveli
Class : Class 9
C10H16O is the answer

Post Your Answer

shriyans from mount litera zee schhol, Kolkata
Subject :NSO    Class : Class 4

Ans 1:

Kishore Kadiyala from NPS, BANGALORE
Class : Class 5

Ans 2:

Rozan nirmali from GIIS, japan
Class : Class 7
The correct answer is option A.

Ans 3:

Kalrjass from DPS, Ahmedabad
Class : Class 4

Ans 4:

Sia Parekh from Pawar Public School, Mumbai
Class : Class 7

Ans 5:

R SAI HARSHIL from HILLSIDE SCHOOL, Hyderabad
Class : Class 4

Ans 6:

Kriti Bhonsale from Delhi Public School, Bengaluru
Class : Class 5

Ans 7:

yashovardhan from sri sri ravishankar vidya mandir, MUMBAI
Class : Class 4
i am dr manali parmar

Ans 8:

NARAYANAN VENKITASUBRAMANI from THE PSBB MILLENNIUM SCHOOL, Coimbatore
Class : Class 8

Ans 9:

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

Ans 10:

Shraddha S Nair from Bright CBSE, Day school vasna, Vadodara
Class : Class 7
The correct answer is A

Ans 11:

Kriti Bhonsale from Delhi Public School, Bengaluru
Class : Class 5

Ans 12:

Yashraj Namdev Deshmukh from Sahyadri English School, Loha, Nanded
Class : Class 7

Ans 13:

Tejaojas Abhilash from Naipunya Public School , Kochi, Kochi
Class : Class 9

Ans 14:

koribilli nihal nachiketh from Timpany secondary school, visakhapatnam
Class : Class 3
The graph X-Axis is not describing digestive system it is describing four components of food which are carbohydrates, proteins, fats, and vitamins and minerals. So, vitamins and minerals are same before digestion and after digestion. answer is S.

Ans 15:

Kalrjass from DPS, Ahmedabad
Class : Class 4
the correct answer is: A

Ans 16:

Ajoy Bhuyan from Delhi public school, Bongaigaon
Class : Class 4

Ans 17: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is A.

When food is taken in the mouth, it is chewed and gets mixed with saliva secreted in the mouth (R). Once swallowed, the food moves through the oesophagus into the stomach where churning and digestion of food with digestive juices occurs (Q). The semi-digested food then moves into the small intestine where complete digestion as well as absorption of nutrients occur (S). From the undigested food, the water is absorbed in the large intestine (P). After this, the undigested food is expelled through the anus in the form of faeces (T).


Ans 18:

Sia Parekh from Pawar Public School, Mumbai
Class : Class 7
A is the correct answerWhen food is taken in the mouth, it is chewed and gets mixed with saliva secreted in the mouth (R). Once swallowed, the food moves through the oesophagus into the stomach where churning and digestion of food with digestive juices occurs (Q). The semi-digested food then moves into the small intestine where complete digestion as well as absorption of nutrients occur (S). From the undigested food, the water is absorbed in the large intestine (P). After this, the undigested food is expelled through the anus in the form of faeces (T).

Post Your Answer