National Science Olympiad Forum By SOF Olympiad Trainer - Page 415
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Pragun goel from Venkateshwar International School, Delhi
Subject :NSO    Class : Class 5

Ans 1:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 2:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 3:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 4:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 5:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 6:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 7:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 8:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 9:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 10:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 11:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 12:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 13:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 14:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 15:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 16:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Post Your Answer

Fareeha siddiqua from Janki Devi public school , Mumbai
Subject :NSO    Class : Class 4

Ans 1:

PRANAB KUMAR from MARIAS PUBLIC SCHOOL, Guwahati
Class : Class 6
i did not understand anything/

Ans 2:

Kavin from ISG , Muscat, Muscat
Class : Class 5
so did i pranab

Post Your Answer

Dishamrutha from indian school of excellence, bangalore
Subject :NSO    Class : Class 5

Post Your Answer

TEJASWANI from TIME SCHOOL, HYDERABAD
Subject :NSO    Class : Class 7

Refer to the given figures and select the correct option regarding them.


APlant P is an insectivorous plant that grows in nitrogen deficient soil while plant Q is a symbiotic plant, which fixes atmospheric nitrogen.
BPlant P can make its own food but it depends on host plant for minerals and water.
CPlant Q cannot photosynthesise hence it absorbs the food prepared by host plant and harms it.
DBoth plants P and Q are insectivorous plants but plant P has glandular tentacles with mucilage at ends whereas plant Q has bladders to catch insect.


tetrggggyfgeu8w88whshhhhhhhhhhhhhhhhhhhhhhhhy3ywhhhhh

Post Your Answer

Lokesh Sai Dasari from Rockwell International School, Hyderabad
Subject :NSO    Class : Class 5

Ans 1:

Dishamrutha from indian school of excellence, bangalore
Class : Class 6
D) Both A & B

Ans 2:

Dishamrutha from indian school of excellence, bangalore
Class : Class 6

Ans 3:

Anjisha Chakraborty from Mount Litera Zee School, Jabalpur
Class : Class 5
Option D)

Post Your Answer

Shaurya Khurana from Suncity, Gurgaon
Subject :NSO    Class : Class 8

Read the given statements and mark the correct option.
Statement 1 : Copper sulphate solution is a good conductor of electricity.
Statement 2 : Conduction of electricity takes place in liquids due to flow of ions.

ABoth statement 1 and 2 are true and statement 2 is the correct explanation of statement 1.
BBoth statement 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
CStatement 1 is true but statement 2 is false.
DStatement 1 is false but statement 2 is true.


Question is very confusing. Statement 2 does not naturally flow from statement 1. statement 2 may have read that "All salts allow flow of ions"

Ans 1:

Rhyin Mandal from Hem Sheela Model School, DURGAPUR
Class : Class 8
excuse me!!!! Is water not a liquid? :)

Ans 2:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10
yes it is but it does not have ions that can conduct electricity

Post Your Answer

Shaurya Khurana from Suncity, Gurgaon
Subject :NSO    Class : Class 8

Ans 1:

Shreyam Tripathy from Ann Mary School, Dehradun
Class : Class 10

Ans 2:

Shreyam Tripathy from Ann Mary School, Dehradun
Class : Class 10

Ans 3:

Aadi from Treamis World School, Bangalore
Class : Class 9
Nothing has been mentioned here, how are we supposed to know whether or not the object is placed at 2F(1) and its image is formed at 2F(2)

Post Your Answer

swayam shah from delhi public school vadodara, Vadodara
Subject :NSO    Class : Class 8

Ans 1:

Anjisha Chakraborty from Mount Litera Zee School, Jabalpur
Class : Class 5
Option B

Ans 2:

Aryan Raina from MGN Public School, Jalandhar
Class : Class 8
no guys m sorry but their answer is correct as when we wear water goggle we can see clear. its fault our eyes not water.

Ans 3:

Simar Narula from Rishi Coaching Institute , Jaipur
Class : Class 8
The answer must be Option B

Ans 4:

Jasleen Kaur Brar from St Joseph's convent sen sec school, bathinda
Class : Class 9
Even i chose option B. Plz explain why would the answer be option D

Ans 5:

Dev Rawat from R D Rajpal School, New Delhi
Class : Class 8
I too did B but the answer according to sof is DPlease explain

Ans 6:

Aryan Raina from MGN Public School, Jalandhar
Class : Class 8
ya its b

Ans 7:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10

Ans 8:

Nikita Sehgal from Apeejay School Mahavir Marg , Jalandhar
Class : Class 8
Yes the answer needs to b option B

Ans 9:

hrishikesh giri basumatary from marias public school, Guwahati
Class : Class 6

Ans 10:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10
b?

Ans 11:

ABDUL Rahman SIDDIQUI from Indian school al maabela , muscat
Class : Class 9

Post Your Answer

Aaryaman Pradhan from De paul School , Berhampur
Subject :NSO    Class : Class 4

Ans 1:

Aadya Kawale from Podar International ICSE , Dombivli East
Class : Class 4
Given figures show the shapes of Moon seen from Earth on different nights:We know that the moon changes from one phase to the next in approximately 3 days. Same is shown by the above figures. Let’s see what all phases the moon has, and put the above given dates to the right phases:That means on January 17, it would be a crescent moon – waxing crescent moon.Hence, the right answer is Option D.

Ans 2:

AVANTIKA V from Amrita Vidyalayam Puducherry , Puducherry
Class : Class 4
D

Ans 3:

UMANG from spring dale college, Lucknow
Class : Class 7
the answer is D. because after the full moon, there comes the glibbous moon

Ans 4:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
answer is d because after new moon cresent moon comes after 2 days

Post Your Answer

Naman surana from Witty international udaipur, Udaipur
Subject :NSO    Class : Class 8

Post Your Answer