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

User Forum

Ask Your Question
A Kumar from SNSVM, East Singhbhum
Subject :NSO    Class : Class 7

Read the given statements and select the correct option.
Statement 1 : An iron ball at 35°C is dropped in a mug containing water at 305.15 K. Then the heat will flow from the water to the iron ball.
Statement 2 : In convection, heated molecules of a liquid themselves move to carry heat from the hot region to the cold region.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true and statement 2 is not the correct explanation of statement 1.
C Statement 1 is true but statement 2 is false.
D Statement 1 is false and statement 2 is true.


very funny sorry good question!!!!!

Ans 1:

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata
Class : Class 7

Ans 2:

Hritvi from Podar International School, Mumbai
Class : Class 7
Answer is D. There is no way it can be C because the temperature of iron ball is greater than that of water

Ans 3:

Joahanna Gabriel from SBIOA International school, Chennai
Class : Class 7

Ans 4:

Aryan Keswani from Delhi Public School, Mathura Road, New Delhi
Class : Class 7
Answer is D. 35 C = 308 K , but in question it says 305 K.

Ans 5:

ANUSHKA PARIDA from INDIRA NATIONAL SCHOOL, PUNE
Class : Class 9
answer is wrong. u yourself have written that ball has higher temperature.so the answer should be C

Ans 6:

A Kumar from SNSVM, East Singhbhum
Class : Class 8
who lol written this

Ans 7:

Ryan Ganguly from Ebenezer International School, Bangalore
Class : Class 7

Ans 8:

Akshara from NPS, Bengaluru
Class : Class 8
The answer is D only.. They have changed it.

Post Your Answer

siddarth from No School, Bengaluru
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B.

Ans 2:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi
Class : Class 4
B

Post Your Answer

siddarth from No School, Bengaluru
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

Ans 2:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi
Class : Class 4
C

Ans 3:

Bushra aslam from uttam, Ghaziabad
Class : Class 5
C

Post Your Answer

Debeesmita Lenka from DAV PUBLIC SCHOOL CHANDRASEKHARPUR, BHUBANESWAR
Subject :NSO    Class : Class 5

Ans 1:

Aswath Krishna from DPS EAST, Bengaluru
Class : Class 6
C is the correct answer as comparatively wind will make the clothes dry the fastest.

Post Your Answer

Sayyed Saad Aman from Gurukul English School,Beed, Beed
Subject :NSO    Class : Class 3

Ans 1:

Vidit Kishore from Johnson Grammar School, Hyderabad
Class : Class 3

Ans 2:

Ashwak from Cambridge International School, Saudi Al Dera
Class : Class 8
Answer is D , look at the Venn diagram once .

Ans 3:

Smita Roy from Nava Nalanda Santiniketan Shakha, Bolpur
Class : Class 3
C

Ans 4:

Priyanshi Pritam from Vibgyor High, Bangalore
Class : Class 2
d

Ans 5:

Ashwak from Cambridge International School, Saudi Al Dera
Class : Class 8
The correct answer is D not C .

Ans 6:

Darshini Chakravarty from Pinnacle High International School, Mumbai
Class : Class 4
C is then answer not D

Ans 7:

Ashwak from Cambridge International School, Saudi Al Dera
Class : Class 8
Answer is D because Y is Duck and X is Penguin both are correct . Hence , answer D is correct .

Ans 8:

aarav m from kumarans, bengaluru
Class : Class 3
Yes,answer is D

Post Your Answer

param ahuja from m.p.s, Ajmer
Subject :NSO    Class : Class 7

Ans 1:

Saranya Kapoor from Shikshantar, Gurugram
Class : Class 10
the answer is (d), as calcium hydroxide is a base and it neutralises the effect of the acids in wastewater

Post Your Answer

Praket Tejas from Delhi Public School Indira Nagar Lucknow, Lucknow
Subject :NSO    Class : Class 4

Post Your Answer

Abhay rajvanshi from Delhi Public School, Gurgaon
Subject :NSO    Class : Class 5

Ans 1:

Monika Bhattacharya from the lexicon international school kalyaninagar, pune
Class : Class 5
Aryaveer and shourya shinde, maybe it be a technical error. But you are right

Ans 2:

Saanvi Prasad from DPS Noida, Noida
Class : Class 5
ANSWER IS A I WROTE IT WRONG IN FORUM IT SHOWS A BRUH ;-;

Ans 3:

Biju Pappachan from Rkc , Raipur
Class : Class 1

Ans 4:

Jibran Noorshah from Christ Academy, Bangalore
Class : Class 5

Ans 5:

Jibran Noorshah from Christ Academy, Bangalore
Class : Class 5
Answer is "A". Since there are technical glitches it shows it as "B"

Ans 6:

Aryaveer And Shaurya Shinde from Goldcrest High Vashi, Navi Mumbai
Class : Class 6
1)When option 'a' choosed SOF shows option 'b' as correct answer and vica-versa. 2) In the book the correct answer is 'a' but over here it is showing as 'b'.

Ans 7:

Nilarka Pahari from Young Horizons School, Kolkata
Class : Class 4

Ans 8:

NeilRaphaelVeigas from Rockwell International School, Hyderabad
Class : Class 6

Ans 9:

Vedant from DON BOSCO, CHENNAI
Class : Class 2
Answer is d

Ans 10:

Biju Pappachan from Rkc , Raipur
Class : Class 1

Post Your Answer

Pushti Shah from mount carmel, ahmedabad
Subject :NSO    Class : Class 6

Post Your Answer

Gauri Singh from St Johns School Marhauli, Varanasi
Subject :NSO    Class : Class 5

Ans 1:

SelvaSundari Sundara Murugan from kendriya vidyalaya, chennai
Class : Class 5
Stomach will grind the food particles into smaller one and in small intestine only finally digestion will takes place and the nutrients will absorbed by blood.

Ans 2:

Shivangi from St. Michael's High School, Patna
Class : Class 5
Small Intestine

Ans 3:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8

Post Your Answer