National Science Olympiad Forum By SOF Olympiad Trainer - Page 352

User Forum

Subject :NSO    Class : Class 9

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
To Ashmi Narkar-Drilling a hole into a metal sheet cause friction as,because of the friction it is able to drill in the metal sheet and make a hole in it!I hope this helped you!

Ans 2:

Class : Class 7
To SOF New Delhi and Master answer Revisewise Noida I hope you are ready to answer my question once again after you gave different answers in the workbook and the website and I got more than 100 likes for that question and the master answer wasn't giving the answer. So read what I have typed below.Please answer: How does "drilling a hole into a metal sheet" cause friction? Please answer as soon as possible (ASAP).From Ashmi Narkar Grade 4SOF Student Vibgyor High Airoli

Ans 3:

Class : Class 7
My sister also says that she had same question just the name was different and she gave same answer and that time too answer was wrong. Now tell me the answer until 19.11.2019

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
Hey, the answer is C only. Because in burning of candle both melting and burning of wax is included right? Ya, so melting of wax is physical change (wax is still wax) and burning of wax is chemical change (wax turns to smoke). And both of these are irreversible. Now see an example. During Diwali we light tea lights, those small, circular candles, right? Have you ever observed it? First the wax melts into liquid wax, then if you don't blow the flame away, the wax burns away! These are CANDLES after all right? So this is how burning of candle is physical, chemical and irreversible change. This answer is written WITHOUT use of any website. Plz consider this as solution. SOF if you could add this as solution could you do that?

Ans 2:

Class : Class 8

Ans 3:

Class : Class 10
it is not C because burning of candle is reversible. I think answer is B

Ans 4:

Class : Class 1

Post Your Answer

Subject :NSO    Class : Class 5
nso

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1

hi nandika, how can we help you? as this forum is designed to solve SOF Olympiad related questions/queries, so use this platform to clear your doubts about these topics.

thanks

happy learning.


Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
I knew that this has a glitch so I reported an error for this question

Ans 2:

Class : Class 5
No diagrammm???

Ans 3:

Class : Class 5
Yes, there is no diagram

Ans 4:

Class : Class 5
there is no diagram

Ans 5:

Class : Class 5
No diagram = No answer as I don't know what's the diagram

Ans 6:

Class : Class 7
What IS THIS????????????????

Ans 7:

Class : Class 5

Ans 8:

Class : Class 5
Diagram is missing in the question

Ans 9:

Class : Class 5
There is no diagram?

Post Your Answer

Subject :NSO    Class : Class 7

Ans 1:

Class : Class 5
answer is option a

Ans 2:

Class : Class 7
The answer is A right?🤔🤔

Ans 3:

Class : Class 9
The answer is A - Bacterium, Bacillus anthracis.

Post Your Answer

Subject :NSO    Class : Class 5

Sania was asked to write about some actions which are voluntary in nature. She has written some involuntary actions too. Pick the involuntary actions written by Sania from the list given below.
(i) Chewing food
(ii) Sitting upright on a table
(iii) Digestion of food
(iv) Beating of heart
(v) Singing a song
(vi) Dancing
(vii) Breathing

A (i), (iii) and (v)
B (iii), (iv) and (vii)
C (ii), (iii) and (vi)
D (v) and (vii)


Ans 1:

Class : Class 5
how is digestion involuntary?!

Ans 2:

Class : Class 3

Ans 3:

Class : Class 5

Ans 4:

Class : Class 5
My answer is B

Ans 5:

Class : Class 5

Ans 6:

Class : Class 5

Ans 7:

Class : Class 7

Ans 8:

Class : Class 4

Ans 9:

Class : Class 5

Ans 10:

Class : Class 5
Ans-B

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 4
nitrogen and sulphur are not greenhouse gases so NOT global warming

Ans 2:

Class : Class 7
Globallllllllllllllll warminggggggggg

Ans 3:

Class : Class 7
Global warming

Ans 4:

Class : Class 8
cccccccccc

Post Your Answer

Subject :NSO    Class : Class 6

Given below are the four food components (P-S) and their corresponding sources.
P – Meat, Fish, Egg
Q – Butter, Ghee, Margarine
R – Bread, Biscuit, Potato
S – Amla, Tomato, Orange
Select the incorrect statement regarding them.

A Deficiency of P causes marasmus in children whereas deficiency of Q causes kwashiorkor in adults.
B Among P, Q, R and S, 1 gram of Q produces the maximum energy.
C Excess of R gets stored in body cells and is used for production of energy whenever required.
D Deficiency of S leads to a disease in which gums swell up and bleed.


Ans 1:

Class : Class 6
hey????!!!! Oh.......... Umm its me only.

Ans 2:

Class : Class 8

Ans 3:

Class : Class 6
Vedang your answer is in the solution

Ans 4:

Class : Class 9

Ans 5:

Class : Class 6
Vedang Amonkar your answer is same as the solution

Ans 6:

Class : Class 6
P is protein, Q is fat, R is carbohydrate and S is vitamin C. Deficiency of proteins causes kwashiorkor whereas marasmus is caused by deficiency of proteins along with carbohydrate. Marasmus occurs in children usually in infants below the age of 1 year and kwashiorkor occurs in children.

Ans 7:

Class : Class 6
Good explanation

Ans 8:

Class : Class 6
umm............ SOF where is my solution?

Ans 9:

Class : Class 9

Ans 10:

Class : Class 7

Ans 11:

Class : Class 9

Post Your Answer