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Kushagra Shukla from Presidium dwarka, New Delhi
Subject :NSO    Class : Class 5

Ans 1:

Irresh Vijay from NPSI Singapore, Singapore
Class : Class 6
The letters are rearranged in descending order PENCIL -> PNLIEC ANGLE -> NLGEA

Ans 2:

Aarohi Tiwari from St Mary ICSE School, NAVI MUMBAI
Class : Class 6
Please explain

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FALAAH.QIDWAI from DPSN, NOIDA
Subject :NSO    Class : Class 1

Ans 1:

Zachariah K John from iss, Sohar
Class : Class 7
ans is 8

Ans 2:

Bhagya Kulkarni from Birla School Kalyan, Kalyan
Class : Class 4
8

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ARNAV GARG from PRUDENCE SCHOOL, New Delhi
Subject :NSO    Class : Class 5

Ans 1:

Hiyansh Jain from Podar International School, Mumbai
Class : Class 6
Only melting of ice cube can be again turned to it's original form

Ans 2:

Preeti tanwar from DON BOSCO ACADEMY, Patna
Class : Class 6
melting of ice

Ans 3:

Aishee Sarkar from St. Stephens School , Kolkata , West Bengal, Kolkata
Class : Class 4
MELTING OF ICE IS THE ONLY PHYSICAL CHANGE IN THE GIVEN OPTIONS. OTERS ARE CHEMICAL CHANGE.

Ans 4:

Anushka kumar from DPS DIGBOI, DIGBOI
Class : Class 7
melting of ice is a physical change but why not others? they are to!

Ans 5:

Vaikhari Sonawane from symbiosis school, Nashik
Class : Class 7
Melting of ice

Ans 6:

Preeti tanwar from DON BOSCO ACADEMY, Patna
Class : Class 6
melting of ice

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ARNAV GARG from PRUDENCE SCHOOL, New Delhi
Subject :NSO    Class : Class 5

Ans 1:

Keshav Taneja from Wisdom world school, Kurukshetra
Class : Class 5
I thought it would be C but after profound thinking I realised that the answer would be D

Ans 2:

Dibyajyoti Das from DAV PUBLIC SCHOOL, Bhubaneswar
Class : Class 5
D

Ans 3:

Mannat Verma from Vivek High School , Chandigarh
Class : Class 5
As air can be compressed and takes up the volume of container, its final volume in the jar will be 400 cm3.

Ans 4:

Nilarka Pahari from Young Horizons School, Kolkata
Class : Class 4
d won't be the correct answer. the answer is c as air can be compressed.

Ans 5:

Dhruv from Springdales, Dubai
Class : Class 4
It will be D as it says that the jar contains 400 cm3 air and if a 50 cm3 syring filled with air is put into the jar it will become 450 cm3 400 50 = 450 cm3.

Ans 6:

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata
Class : Class 6
d

Ans 7:

Elena from NPS, Bnagalore
Class : Class 4
C

Ans 8:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 5
you all are coreect

Ans 9:

Shaina Mukherjee from DPS Sharjah, Dubai
Class : Class 5
D

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ARNAV GARG from PRUDENCE SCHOOL, New Delhi
Subject :NSO    Class : Class 5

Ans 1:

Dhruv from Springdales, Dubai
Class : Class 4
ans Bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

Ans 2:

Hiyansh Jain from Podar International School, Mumbai
Class : Class 6

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ARNAV GARG from PRUDENCE SCHOOL, New Delhi
Subject :NSO    Class : Class 5

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ARNAV GARG from PRUDENCE SCHOOL, New Delhi
Subject :NSO    Class : Class 5

Vijay performed an experiment to compare the heat conductivity of four different materials P, Q, R and S. Thumbtacks were fixed with wax on each material and then the materials were fixed to a trough containing hot water as shown in the diagram.

Vijay tabulated his results as shown here.

What can be inferred from his experiment?

A Material R is a better conductor of heat than material S.
B Material S is a better conductor of heat than material R.
C Material Q is a better conductor of heat than material P.
D Materials P, Q, R and S are equally good conductors of heat.


Ans 1:

Srishti Rani from DBMS ENGLISH SCHOOL, Jamshedpur
Class : Class 5

Ans 2:

Mannat Verma from Vivek High School , Chandigarh
Class : Class 5
???

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ARNAV GARG from PRUDENCE SCHOOL, New Delhi
Subject :NSO    Class : Class 5

Ans 1:

Neelesh Dutta from Innocent Hearts School, JALANDHAR
Class : Class 4
The answer is C because air and water can be compressed

Ans 2:

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata
Class : Class 6

Ans 3:

Arnav kaul from Chirec, Hyderabad
Class : Class 5

Ans 4:

Arnav kaul from Chirec, Hyderabad
Class : Class 5

Ans 5:

Arnav kaul from Chirec, Hyderabad
Class : Class 5

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Sanjana Iyer from HFS Powai, Mumbai
Subject :NSO    Class : Class 6

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Sanjana Iyer from HFS Powai, Mumbai
Subject :NSO    Class : Class 6

Ans 1:

Shriyann from Lodha World School, Thane
Class : Class 7

Ans 2:

Ashher Pervez from DPS Bhilai, Bhilai
Class : Class 7
I think the question was wrong as they ate showing incorrect statements. This means the question was like this. Which of the following statements are incorrect?

Ans 3:

Ashutosh Sundresh from Global Indian International School, Pune
Class : Class 8
ANSWER IS A, NOT B AS THE QUESTION SAYS TO CHOOSE THE CORRECT OPTION AND NOT INCORRECT OPTION.

Ans 4:

saanvi from rvk, bengaluru
Class : Class 6
the question must be wrong.

Ans 5:

BHAVYA JHA from GLOBAL CITY INTERNATIONAL SCHOOL, BANGALORE
Class : Class 6
They are asking for the CORRECT answer so its A

Ans 6:

SAGNIK CHAKRABORTY from DELHI PUBLIC SCHOOL , KOLKATA
Class : Class 7
The answer is A

Ans 7:

Vinayak Subramani from Euroschool , Mumbai
Class : Class 6
there are too many silly errors in your papers like these. i am tired of writing complaints again and again. you better respond to this quickly. the explanation you have given in solution is correct but the answer is wrong. it should be 'a' and not 'b'.

Ans 8:

Bhabani Prasad from Narayan School, Kolkata
Class : Class 6
Please stop these kind of mistakes. I have given many complaints.

Ans 9:

nimay gupta from genesis global school, noida
Class : Class 7
Excuse me. The answer is not b, its a. They say it themselves in the solution. I suppose it's a mistake

Ans 10:

Ashher Pervez from DPS Bhilai, Bhilai
Class : Class 7

Ans 11:

Dipam from Podar International School, Aurangabad
Class : Class 8
(i) Milky Way is a spiral-shaped galaxy. --- Corrrect (ii) Planet Venus has 63 Moons. -------------Wrong ( it does not have moons) (iii) Satellites are small heavenly bodies that revolve around the Sun. --Wrong (they revolve around planets) (iv) One revolution of the Earth is completed in about 365 1/4 days. This time period is called a solar year. --Correct Therefore correct option is (A)

Ans 12:

Shayan Bari from Kendriya Vidyalaya, Katihar
Class : Class 7
The correct answer will be A as Milky Way is a spiral-shaped galaxy and one revolution of the Earth is completed in about 365.25 days and this time period is called a solar year.

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