National Science Olympiad Forum By SOF Olympiad Trainer - Page 275
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Lakshmi from FPS, Bangalore
Subject :NSO    Class : Class 6

Ans 1:

Vasu tyagi from St Joseph's High school, Panvel
Class : Class 6
Answer is D neem.

Ans 2:

Rochishnu Ghosh Hazra from Techno India Group Public School -Bolpur , Bolpur
Class : Class 9

Ans 3:

Jatan from RBK Global, Thane
Class : Class 6

Post Your Answer

Lakshmi from FPS, Bangalore
Subject :NSO    Class : Class 6

Study the given experimental set-up and select the correct observation.


AA homogeneous mixture will be formed in test tubes 4 and 5.
BA heterogeneous mixture will be formed in test tubes 2 and 3 and solute particles will settle at the bottom after some time if left undisturbed.
CComponents in test tubes 5 and 6 are too small in size and hence cannot be separated by filtration.
DA heterogeneous mixture is formed in test tubes 1 and 2 and solute particles will float on the surface of water.


can anyone explain the solution

Post Your Answer

Lakshmi from FPS, Bangalore
Subject :NSO    Class : Class 6

Ans 1:

Ashi Goyal from Sacred heart convent school,raikot road,barnala, punjab
Class : Class 6
answer is d only.it is right

Ans 2:

Vasu tyagi from St Joseph's High school, Panvel
Class : Class 6
Answer is B 1.92 sec

Ans 3:

Lohithakshith Pati from Olive international school , qatar
Class : Class 8
why

Post Your Answer

Lakshmi from FPS, Bangalore
Subject :NSO    Class : Class 6

Ans 1:

Vasu tyagi from St Joseph's High school, Panvel
Class : Class 6
Answer is. A . correct explanation is on the answer .metals expand on heating !

Ans 2:

Shreya Yegna Narayanan from psbb, chennai
Class : Class 6
Hey! They have given contract see properly!

Post Your Answer

Shreya Shruti from Airforce school , Bengaluru
Subject :NSO    Class : Class 3

Ans 1:

Advita Ghelani from Rustomjee Cambridge, Mumbai
Class : Class 3
Small Intestine

Post Your Answer

Shreya Shruti from Airforce school , Bengaluru
Subject :NSO    Class : Class 3

Ans 1:

Shreya Shruti from Airforce school , Bengaluru
Class : Class 7

Ans 2:

Advita Ghelani from Rustomjee Cambridge, Mumbai
Class : Class 3
Plants grow well in it since they can retain water and are loosely held

Ans 3:

Iraj Singh from DPS Megacity, Kolkata
Class : Class 7
Plants grow well in loamy soil so the option A should have loamy soil as the correct answer.

Ans 4:

Arjun Gourineni from CHIREC International School, Hyderabad
Class : Class 7

Post Your Answer

Aarav Srivastav from DWPS , Noida Extension
Subject :NSO    Class : Class 6

Ans 1:

Vikram from AVM, Mumbai
Class : Class 5
Polybags can never be incinerated ! pls check answers and dont confuse students

Ans 2:

Vikram from AVM, Mumbai
Class : Class 5
Therefore none of the answers are right because tea leaves and polybags are are never incinerated

Ans 3:

Aarav Srivastav from DWPS , Noida Extension
Class : Class 7

Ans 4:

Aarav Srivastav from DWPS , Noida Extension
Class : Class 7

Ans 5:

SHIRIN BHATTACHARYYA from St. Joseph's Convent School, KHANDWA
Class : Class 10

Post Your Answer

Amol Athawale from WoodRidge High, aurangabad
Subject :NSO    Class : Class 8

Few Natural resources are classified as:

P. Exhaustible
Q. Inexhaustible

Some natural resources are
(i) Petrol, diesel
(ii) Coal, petroleum
(iii) Air, water
(iv) Cow dung cakes, sunlight
(v) Forests, minerals

Which of the following represents the correct match?

A P-(iii), (iv); Q-(i), (ii), (v)
B P-(i), (ii), (v); Q-(iii), (iv)
C P-(ii), (v), Q-(i), (iii), (iv)
D None of these is a correct match.


how is cow dung cake a inexaustible resource ?

Ans 1:

Garv T from Lilavatibai Podar, Mumbai
Class : Class 9
are forests and minerals really exhaustible resources?

Ans 2:

Antarik Maity from Bharatiya Vidyabhaban, Kolkata
Class : Class 8
How can cow dung cakes and forests and minerals be an exhaustible resource as cow dung cakes are available in abundance and it will be available till all the cows on the earth die and sane goes for the forests. Minerals are also available in abundance and they are definitely inexhaustible.

Ans 3:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 6
how is cow dung cake an inexaustible resource?

Ans 4:

Gaurish Singla from DPS School Sector 19, Faridabad
Class : Class 8

Ans 5:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 6

Ans 6:

Hprakash09 from Billabong high Bhopal, Bhopal
Class : Class 7
Forests and Minerals are DEFINETELY exhaustible resources, but Cow Dung Cakes are also exhaustable.

Post Your Answer

Vihaan kohli from MVN Aravali, Faridabad
Subject :NSO    Class : Class 3

Five children made the following statements about birds.
Ashok : All birds can fly.
Beena : All birds have a beak.
Ashu : All birds have a backbone.
Shuchi : All birds have an outer covering of feathers.
Siddhi : Most birds lay eggs, while some give birth to their young ones.
Whose statements about birds are true?

AAshok, Beena and Ashu only
BBeena, Ashu and Shuchi only
CAshok, Beena, Shuchi and Siddhi only
DBeena, Ashu, Shuchi and Ashok only


it was very hard

Ans 1:

Achyut Rai from THE KHAITAN SCHOOL, NOIDA
Class : Class 6
B

Ans 2:

SPRIHA SINGH from KV BEML Nagar, KGF
Class : Class 4
The correct answer is B.

Ans 3:

Ava from trio, bangalore
Class : Class 2
B

Ans 4:

Advita Ghelani from Rustomjee Cambridge, Mumbai
Class : Class 3
Beena, Ashu and Shuchi because Kiwi, Ostrich, Emu cannnot fly Penguins have a thin coat of feathers All birds lay eggs THEY ALL HAVE BEAKS AND A BACKBONE

Ans 5:

AADYA TANDON from DPS NOIDA SEC-30, Noida
Class : Class 5
B

Ans 6:

Jivyan from KIIT world school, Gurgaon
Class : Class 3
b

Ans 7:

Shruti from ,
Class : Class 1
B

Post Your Answer

Syed Mohammad Hussain from ISAM, Muscat
Subject :NSO    Class : Class 5

Ans 1:

Shreejith from EuroSchool , Bangalore
Class : Class 7
CWhen a bomb explodes,chemical energy stored in the chemicals that form the bomb converts into heat, sound and light energy.

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

C

When a bomb explodes, chemical energy stored in the chemicals that form the bomb converts into heat, sound and light energy.


Post Your Answer