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Praghya Dindikurthi from Carmel School, Bangalore
Subject :NSO    Class : Class 6

Aarushi took two food samples X and Y in separate test tubes. She added 2-3 drops of Benedict’s solution in food sample X and heated it while she added two drops of copper sulphate solution and few drops of caustic soda solution in food sample Y. She observed that sample X turned brick-red while sample Y turned purple.
Which of the following is correct regarding X and Y?

A X consists of protein while Y consists of starch.
B X consists of sugar while Y consists of protein.
C X consists of starch while Y consists of protein.
D X consists of sugar while Y consists of starch.


Ans 1:

satwik patnaik from DPS Rourkela, Rourkela
Class : Class 6
answer is b

Ans 2:

Manisha Vichare from Dcv, Mumbai
Class : Class 6
The answer is actually C because starch consists of carbohydrates and sugars, but sugars is not the exact answer.

Ans 3:

Himmat Singh from r.p.s school, Mohindergarh
Class : Class 7
The correct answer is b

Ans 4:

S SAHITHYAA RAMAN from Padma Seshadri T Nagar, Chennai
Class : Class 7
Answer is c

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ABHAY AGARWAL from ,
Subject :NSO    Class : Class 4

Rohit performed an experiment wherein he set up three test tubes as shown in the figure. Select the INCORRECT statement regarding this.


ATest tube P will have most carbon dioxide after three hours.
BTest tube Q will have least oxygen after three hours.
COrganisms in test tube R will survive for a longer time as compared to organisms in test tubes P and Q.
DNo oxygen will remain in test tube P after some time.


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Ans 1:

Ainesh das from Chrysalis, Bangalore
Class : Class 4

Ans 2:

avighna wuthoo from The bishop school , PUNE
Class : Class 5

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ABHAY AGARWAL from ,
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

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

Ans 2:

adhiraj chaudhary from apeejay school noida, noida
Class : Class 3

Ans 3:

adhiraj chaudhary from apeejay school noida, noida
Class : Class 3
the correct answer is d

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G.pradanya from KV IIT, Chennai
Subject :NSO    Class : Class 6

Ans 1:

Raghav Aggarwal from CAMBRIDGE SCHOOL INDIRAPURAM, INDIRAPURAM
Class : Class 7

Ans 2:

Winka Jayaprakash from Sri Vijay Vidyasharam , Hosur
Class : Class 9
the field line travels from north to south

Ans 3:

Ishaan Das Roy from Sri Chaitanya Techno School, Bengaluru
Class : Class 7

Ans 4:

Agustya vaid from Somerville school vasundhara enclave, Delhi
Class : Class 6

Ans 5:

Rahil from Delhi Public School Faridabad, Faridabad
Class : Class 7

Ans 6:

kpks14 from RIMT World School, Chandigarh
Class : Class 7

Ans 7:

Agustya vaid from Somerville school vasundhara enclave, Delhi
Class : Class 6
understood?

Ans 8:

Agustya vaid from Somerville school vasundhara enclave, Delhi
Class : Class 6
the answer is d because the field lines of a magnet always travle from north to south

Ans 9:

Ishaan Das Roy from Sri Chaitanya Techno School, Bengaluru
Class : Class 7

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Akshay Kumar from BVM, Chennai
Subject :NSO    Class : Class 7

Ans 1:

Amol Athawale from WoodRidge High, Mumbai
Class : Class 7

Ans 2:

Mayank Gupta from Kulachi Hansraj Model School, New Delhi
Class : Class 8

Ans 3:

Amol Athawale from WoodRidge High, Mumbai
Class : Class 7

Ans 4:

Arnav from Gyan Bharati School, New Delhi
Class : Class 7
Yes, the answer is option "C". It is not true that arteries will always carry oxygenated blood and the veins will always carry deoxygenated blood (pulmonary vein and artery).

Ans 5:

Arnav from Gyan Bharati School, New Delhi
Class : Class 7

Ans 6:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 7
C

Ans 7:

N Sankar Narahari from Madhavakripa English Nursery and Higher Primary School, Manipal
Class : Class 7
here option c holds true because in option a and b we can make an exception with pulmonary artery and vein.

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chandra Deb from ,
Subject :NSO    Class : Class 5

Ans 1:

Pragun goel from Venkateshwar International School, Delhi
Class : Class 6
sea snakes also breathe through skin so option 1 should also be correct.

Ans 2:

Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi
Class : Class 6

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Shuvangi Das from Vivekananda mission school, haldia
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

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

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Rio Choudhury from South Point High School, Kolkata
Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
Molars and Premolars are mainly used to chew the food.

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vaibhav from , Faridabad
Subject :NSO    Class : Class 7

Ans 1:

aryan vir from lotusvalley international school gurugram, Gurgaon
Class : Class 7

Ans 2:

Arush from Anandi Public School, Udgir
Class : Class 3

Ans 3:

aryan vir from lotusvalley international school gurugram, Gurgaon
Class : Class 7

Ans 4:

aryan vir from lotusvalley international school gurugram, Gurgaon
Class : Class 7

Ans 5:

Arush from Anandi Public School, Udgir
Class : Class 3
such questions r always confusing.................

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ABHAY AGARWAL from ,
Subject :NSO    Class : Class 4

Refer to the given paragraph and table and answer the following questions.
Neha took 100 gm each of three types of soil, X, Y and Z, in three separate pots with hole at the bottom. The amount of water that was poured in the soil pot, just before it started dripping from the bottom hole, is tabulated here.

The soil that is mixture of clay, sand, humus and is usually very good for growth of most plants is __________.

A X
B Y
C Z
D Cannot be determined


Ans shd be D (Cannot be determined)

Ans 1:

ANURADHA NAIR from SANDEEPANI VIDYA NIKETHAN SCHOOL, Thrissur
Class : Class 4
B IS THE ANSWER ANURADHA NAIR 4C

Ans 2:

ABHAY AGARWAL from ,
Class : Class 3

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