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

User Forum

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

Ans 1:

Thaneesha from Radcliffe School, Kharghar
Class : Class 5

Ans 2:

Eklavya Gondule from DPS Bhilai, BHILAI
Class : Class 7

Ans 3: (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.


Post Your Answer

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

Shruti took a white carnation flower and split its stalk halfway along the length and arranged a setup as shown in the given figure. After some time, she observed that half of the petals turned blue and half turned red. A section through stem also showed blue and red coloured areas.
What can she infer from this experiment?


A Stem conducts water to all plant parts.
B Stem has localised structures for conduction of water.
C Stem conducts solutes alongwith water.
D All of these


give this kind of more questions please

Ans 1:

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

Ans 2:

Ahaan Mittal from Primus Public School, Bengaluru
Class : Class 6
I got it wrongBut i figured that answer is d

Ans 3:

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

Ans 4:

Monika Bhattacharya from the lexicon international school kalyaninagar, pune
Class : Class 5
Stem carries water to all parts of plants

Ans 5:

Arnav kaul from Chirec, Hyderabad
Class : Class 5

Ans 6:

Bhavya from ABC, Delhi
Class : Class 6
I got it correct DRITHI. super easy question

Ans 7:

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

Ans 8:

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

Ans 9:

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

Ans 10:

Anantjit Chander from Apeejay School, Sector 14, Faridabad, Faridabad
Class : Class 5
(B) or (D)?

Ans 11:

SIDDHARTH KUMAR CHATTERJEE from NAVY CHILDREN SCHOOL , CHICALIM
Class : Class 5
The stem absorbed the color along with the water, so some parts of the stem and the flower turned blue or red.

Ans 12:

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

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 6
wind

Post Your Answer

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

Ans 1:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 5
Oooooooo.......... Smart

Ans 2:

tauseef from pearl school, doha
Class : Class 5

Ans 3:

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

Ans 4:

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

Ans 5:

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 6:

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

Ans 7:

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 8:

Krethick Ravichandrsn from Yuvabharathi International School, Singapore
Class : Class 7
me too

Ans 9:

SOMDATTA BHATTACHARYA from DON BOSCO, KOKRAJHAR
Class : Class 6

Ans 10:

Mridul Jain from Shishukunj International School Indore, Indore
Class : Class 7
What is the method for solving this?

Ans 11:

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

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

The given statements which summarise the process of digestion are not given in a correct sequence. Arrange them in sequence and select the correct option.
P. Absorption of water
Q. Churning of food and addition of digestive juices
R. Mixing with saliva
S. Complete digestion of food and absorption of nutrients
T. Expulsion of faeces

A R → Q → S → P → T
B R → S → Q → P → T
C R → Q → P → S → T
D R → P → Q → S → T


Ans 1:

Sia Parekh from Pawar Public School, Mumbai
Class : Class 4
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).

Ans 2:

Kishore Kadiyala from NPS, BANGALORE
Class : Class 5

Ans 3:

Shraddha S Nair from Bright CBSE, Day school vasna, Vadodara
Class : Class 4
The correct answer is A

Ans 4:

Sia Parekh from Pawar Public School, Mumbai
Class : Class 4

Ans 5:

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

Ans 6:

Tejaojas Abhilash from National Public School, malayalam
Class : Class 4

Ans 7:

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

Ans 8: (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 9:

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

Ans 10:

Kalrjass from DPS, Ahmedabad
Class : Class 4

Ans 11:

NARAYANAN VENKITASUBRAMANI from THE PSBB MILLENNIUM SCHOOL, Coimbatore
Class : Class 4

Ans 12:

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

Post Your Answer

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

In a research, it is proved that in old age one should take more quantity of proteins in diet than any other group of food. Which of the following justifies this?

A Proteins help to repair and build muscles. In old age, muscle growth increases, hence protein intake should be more.
B Proteins help to repair and build muscles. In old age, muscles become weak, hence protein intake should be more.
C Proteins give energy to the body. In old age, the body needs more energy to work, hence protein intake should be more.
D Proteins give energy to the body. In old age, the body uses stored fat hence, protein intake should be more.


Ans 1:

Aajani Datta from The Samhita Academy, Bangalore
Class : Class 5
Proteins act like building blocks of our body

Ans 2:

A S Neeraj from K V 2, Chennai
Class : Class 6
B. Protein intake should be more. It repair and build muscle

Ans 3:

Swarnava Pal from Vivekananda Mission School, Haldia
Class : Class 5

Ans 4: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is B.

 


Ans 5:

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

Ans 6:

NARAYANAN VENKITASUBRAMANI from THE PSBB MILLENNIUM SCHOOL, Coimbatore
Class : Class 4

Post Your Answer

Saanvi Santaji Yadav from Lead School mogavali , Mangoan
Subject :NSO    Class : Class 2

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Please visit our website- www.mtg.in or call us at 91-0124-4219385, 4219386 for any queries regarding purchase of books.


Post Your Answer

Saanvi Santaji Yadav from Lead School mogavali , Mangoan
Subject :NSO    Class : Class 2

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Please visit our website- http://www.sofworld.org or call us at  0124-4951200 (Landline No), 9312680855, 9312680857 (Mobile:).


Post Your Answer

Mridul Jain from Shishukunj International School Indore, Indore
Subject :NSO    Class : Class 5

A student investigates erosion using four kinds of equal amount of earth materials: top soil, clay, sand and soil planted with grass. Equal amounts of water is allowed to flow from the surface of each type of earth material. The water is then separated out from the earth material with the help of a filter. The given figure shows the amounts of earth material that are collected. The results of this investigation best support which conclusion?


ATop soil is easily eroded.
BSand has a smooth texture.
CWater travels fastest through soil planted with grass.
DWater drains most quickly through clay.


Can you please explain.

Ans 1:

tanmay chaudhry from BAL BHAVAN PUBLIC SCHOOL, New Delhi
Class : Class 4
answer a soil erosion will occur

Ans 2:

shreedhar from the shri ram school, delhi
Class : Class 5
top soil is easily eroded (a)

Post Your Answer