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MARIA K PAUL from DON BOSCO SCHOOL OF EXCELLENCE EGMORE, CHENNAI
Subject :NSO    Class : Class 6

Ans 1:

sujata patel from Podar International, Pune
Class : Class 6
it is simple that while measuring, at first you eye must be vertically above 0

Ans 2:

from , Jajpur
Class : Class 6
the answer will be both a and b

Ans 3:

sujata patel from Podar International, Pune
Class : Class 6
cccccccccccc

Ans 4:

PARNIKA SINGH from GYAN GANGA EDUCATION ACADEMY, RAIPUR
Class : Class 10
GIVEN ANSWER IS NOT CORRECT AS A IS THE CORRECT ANSWER

Ans 5:

AUSTIN from Viswajyothi CMI Public School, Chowara
Class : Class 7
i think its C

Ans 6:

atharv nila from VIBGYOR, Bengaluru
Class : Class 6

Ans 7:

aritroray from Chirec International School, Hyderabad
Class : Class 8
I think it should be C because otherwise the zero end can shift slightly (in our viewpoint) and measurement will be wrong. So both statements a and b are correct and the answer is C.

Ans 8:

PARNIKA SINGH from GYAN GANGA EDUCATION ACADEMY, RAIPUR
Class : Class 10

Ans 9:

Mansi Sadavarti from Vibgyor High, Pune
Class : Class 7
I agree with Aritroray the answer should be C

Ans 10:

Anushka Srivastava from Cjm, Dehradun
Class : Class 7
no because what will u do of zero u have to

Ans 11:

Subhang Deep Sahu from Chrysalis High Kadugodi . , Bangalore
Class : Class 7

Ans 12:

Rahil from Delhi Public School Faridabad, Faridabad
Class : Class 7
No as it causes a parallax error. It should be option A. If you don't believe me then try it yourself with a scale and measuring a line segment from different eye positions. You will see that, the measurement varies slightly every time. That's why option A is correct.

Ans 13:

chittaranjan kar from MLZS, Jaipur
Class : Class 3
No guys. Human eye can't focus simultaneously on two points. To avoid parallax error , eye should be on the point of measurement to be taken.Hence given answer is correct in my view. You may comment.

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Sargah Surya from bgsnps, Bengaluru
Subject :NSO    Class : Class 6

Ans 1:

Ishir Jha from Gyan Ganga Global Academy, Rosera
Class : Class 8

Ans 2:

Admin fly from Ddssxxx, Ax
Class : Class 1
A

Ans 3:

Prathamesh Raje from DPS Electronic City, Bangalore
Class : Class 9

Ans 4:

Pragyan Srivastava from Manipal Public School, Lucknow
Class : Class 10
A

Ans 5:

Admin fly from Ddssxxx, Ax
Class : Class 1

Ans 6:

Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi
Class : Class 7

Ans 7:

Rahil from Delhi Public School Faridabad, Faridabad
Class : Class 7
A as image is as far behind the mirror as Object is in front of it. In this case Sachin is 3 m in front of the mirror and the object seems to be seven meters ahead. As Sachin is 3 m in front of the mirror that means object is (7-3) = 4 m behind the mirror. As image is as far behind the mirror as Object is in front of it, It means chart is 4 meters in front of the mirror. ( 4 - 3 ) = 1 m behind Sachin as Sachin is also in front of the mirror. Hope that answers your question !

Ans 8:

arnav from Dps noida, Delhi
Class : Class 8
a

Ans 9:

ttraj from KV IIT, Chennai, Chennai
Class : Class 3
A

Ans 10:

Bhavtosh Tripathi from Maneckji Cooper Education Trust School, Mumbai
Class : Class 9

Ans 11:

Nandan Makineni from VIBGYOR HIGH, Bangalore
Class : Class 6

Ans 12:

Vasu tyagi from St Joseph's High school, Panvel
Class : Class 6
Sachin is being tested for his eyesight by an optician.Now, let’s read the given information carefully, and find out the position of Sachin.Sachin sits 3 m in front of a plane mirror, and looks at the image of the chart of letters, which seems to be 7 m in front of him.This means the distance between the mirror and the image of the chart is (7 m – 3 m = 4 m). If the image of the chart is 4 m behind the mirror, then the actual chart is placed 4 m in front of mirror.Now the chart is placed 4 m in front of the mirror, and Sachin is sitting 3 m in front of the mirror. That means the chart is placed (4 m – 3 m = 1 m) behind Sachin. Hence, the right answer is Option A.

Ans 13:

Vasu tyagi from St Joseph's High school, Panvel
Class : Class 6
Sachin is being tested for his eyesight by an optician.Now, let’s read the given information carefully, and find out the position of Sachin.Sachin sits 3 m in front of a plane mirror, and looks at the image of the chart of letters, which seems to be 7 m in front of him.This means the distance between the mirror and the image of the chart is (7 m – 3 m = 4 m). If the image of the chart is 4 m behind the mirror, then the actual chart is placed 4 m in front of mirror.Now the chart is placed 4 m in front of the mirror, and Sachin is sitting 3 m in front of the mirror. That means the chart is placed (4 m – 3 m = 1 m) behind Sachin. Hence, the right answer is Option A.

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Deeptajit Roy from Gems Modern Academy, Dubai
Subject :NSO    Class : Class 5

Ans 1:

Achyut Prasad from Prabhujee English Medium School, Bhubaneswar
Class : Class 5
Ans is C potato is stem and sugar cane also stem

Ans 2:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 9

Ans 3:

Dhruv Osekar from Mitra Academy, Bangalore
Class : Class 5

Ans 4:

Manasvi Nagpal from blooming dales international school, sri ganganagar
Class : Class 5
yes ,you are rightans is c

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Ashwak from Cambridge, Jalandhar
Subject :NSO    Class : Class 3

Ans 1:

Kashika Goel from DPS Noida, Noida
Class : Class 6
B is not correct as it is gravity that causes objects to fall on the ground

Ans 2:

Ashwak from Cambridge, Jalandhar
Class : Class 8

Ans 3:

Raghav Agarwal from Dinobli School, jharia
Class : Class 4
How is it C

Ans 4:

Vineet Banode from New Horizon Scholars School, Pune
Class : Class 5
Yes how it can be C ?

Ans 5:

Kashika Goel from DPS Noida, Noida
Class : Class 6
frictional force is answer prevents from slipping

Ans 6:

Ivan Tyagi from Chirec International School , Hyderabad
Class : Class 7

Ans 7:

Kashika Goel from DPS Noida, Noida
Class : Class 6
B is not correct as it is gravity that causes objects to fall on the ground

Ans 8:

Prayaan handel from Billabong high international school, Bhopal
Class : Class 4
how about B

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

Ans 1:

Aadya Kawale from Podar International ICSE , Dombivli East
Class : Class 4
Hey, some spider species have six legs, usually out of India. And the whole explanation is wrong.

Ans 2:

Aarav sugla from Niraj International School , Secunderabad
Class : Class 5

Ans 3:

Bharat Aggarwal from Kalyani school, Pune1
Class : Class 4
But no spider species have 6 legs

Ans 4:

Keanna from APG, MUMBAI
Class : Class 7
A. P could be cold-blooded animal whereas R could be warm-blooded animal. ----- Frog has backbone, lays eggs and is a cold-blooded animal. So, P can be a Frog. Humans have backbone and hair, and they are warm-blooded. So, R can be a Human Being. So, this statement is Correct.B. Q could be six-legged animal whereas R could be four-legged animal. ----- Spiders have six legs and they lay eggs. So, Q can be a Spider. Horses are four-legged animals. They have backbone and hair. So, R can be a Horse. So, this statement is Correct.C. R could breathe through lungs whereas S could breathe through spiracles. ----- Dogs breathe through lungs, they have backbone and hair. So, R could be a Dog. Cockroaches breathe through spiracles. They have backbone and lay eggs, but they have no hair. So, S can be a Cockroach. So, this statement is Incorrect.D. P could have a pair of wings whereas Q could have two pairs of wings. ----- Birds have a pair of wings. They have backbone and they lay eggs. So, P could be a Bird. Most insects have two pair of wings, and they lay eggs. So, Q could be an Insect. So, this statement is Correct.Hence, the right answer is Option C.

Ans 5:

lavanya from bcm chd road, Ludhiana
Class : Class 5

Ans 6:

Om Adhatrao from Orchids International School, Thane
Class : Class 4
Thank you for the explanation

Ans 7:

Saarth Agrawal from Podar International School , Mumbai
Class : Class 6
Please explain more nicely and Keanna thank you for explaining

Ans 8:

Nirvaan Jain from Anand Niketan Satellite Campus, Ahmedabad
Class : Class 4
The option D. is wrong. It mentions 3 pairs of wings whereas it should be 2 pairs of wings.

Ans 9:

Bharat Aggarwal from Kalyani school, Pune1
Class : Class 4
But no spider species have 6 legs

Ans 10:

Arjun120914 from St. Andrews world school, Ghaziabad
Class : Class 5

Ans 11:

kartikeya nangrani from the kalyani school, pune
Class : Class 4
Most off your questions are wrong

Ans 12:

KANAK PRASAD from Kendriya Vidhyalaya IIT Tirupati, Tirupati
Class : Class 5
confusing question

Ans 13:

Archita Moi from The Newtown School, Kolkata
Class : Class 4
Oh my! thanks for solving my problem .

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

Ans 1:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
OMG!How confusing!How did the others do it!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 2:

ankhi sen from Don Bosco, Kolkata
Class : Class 2
please explain the reasoning

Ans 3:

Vansika Jasrapuria from Chatrabhuj Narsee School, Mumbai
Class : Class 4

Ans 4:

Rakshit Singh from DLF Public School, Ghaziabad
Class : Class 5

Ans 5:

Deveshi Sachdev from venkateshwar international school, New Delhi
Class : Class 5
I did it with a guess and got it right somehow!

Ans 6:

Harsh Mahyavanshi from Lokhandwala Foundation School, Mumbai
Class : Class 4

Ans 7:

Aadya Kawale from Podar International ICSE , Dombivli East
Class : Class 4
Let’s study the given food-web carefully:The food-web is starting from P. So, P are plants (Producers). Q, T and U are eating these plants, so they are Herbivores (Primary Consumers). R are eating Q, and V are eating U, so they are Carnivores (Secondary Consumers). S are eating T as well as R

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Advait talnikar from Dhruv Global School, Sangamner
Subject :NSO    Class : Class 6

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Akshara Singh Virk from DPS , Sec 47, Gurgaon
Subject :NSO    Class : Class 3

Ans 1:

Aneesh Balaji from BVBARR school, Hyderabad
Class : Class 4
d

Ans 2:

Nishant Hazarika from Air Force School, Dibrugarh
Class : Class 3
Answer can be A also as Q can be duck and P can be penguin and both of them have webbed feet and penguins live in places like Antartica.

Ans 3:

ANSHUL GAJJAR from PODAR INTERNATIONAL SCHOOL, AHMEDABAD
Class : Class 3
D

Ans 4:

Gunnika from MVN, Faridabad
Class : Class 3
is it option C ?

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Mani Gupta from Carmel Convent School, Faridabad
Subject :NSO    Class : Class 8

Ms. Rashmita, a science teacher has set up an experiment as shown in the figure.

Which of the following represent the correct observations?
(i) Both the metal strips dissolve in beaker II.
(ii) Colour change is observed in beaker I.
(iii) No reaction takes place in beaker III.
(iv) Fe strip will dissolve faster in beaker I.
(v) Reaction occurs in beaker III but no colour change is observed.

A (iii) and (iv) only
B (i) and (iii) only
C (ii) and (v) only
D None of these

Ans 1:

Ani from Sav, Kolkata
Class : Class 9
B

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Shruti Rajshree from NPS Indiranagar, Bengaluru
Subject :NSO    Class : Class 5

Ans 1:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 2:

Ayushree Barman from Sri Sri Academy, Kolkata
Class : Class 6
Why will it be D? It should be C, because the Vaseline blocks the stomata of the leaves, and thus blocks the surface for transpiration, so water droplets will not appear on those leaves, but the uncovered leaves were not stained or covered with anything, so the transpiration process in those leaves should stay normal.

Ans 3:

CHIRAG KHORIA from EVERGREEN PUBLIC SCHOOL, MAYNAGURI
Class : Class 5

Ans 4:

Pratham Dave from GNS, Bangalore
Class : Class 7
Why D?It should be option C .

Ans 5:

munish jindal from APJ school, Jalandhar
Class : Class 8

Ans 6:

Navya GUPTA from dps noida, Noida
Class : Class 3

Ans 7:

CHIRAG KHORIA from EVERGREEN PUBLIC SCHOOL, MAYNAGURI
Class : Class 5
SOF, Isnt the answer C?

Ans 8:

Pratham Dave from GNS, Bangalore
Class : Class 7
C is the answer to this question because the leaves are uncovered

Ans 9:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is C because like humans, plants also sweat. This is called transpiration.

Ans 10:

Shreyan from Delhi Public School Bangalore East, Bangalore
Class : Class 5
isn't the answer c

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