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Sainavaneet from Global Indian , Bangalore
Subject :NSO    Class : Class 7

Ans 1:

CHIRAG SHAH from Lilavati Poddar , Mumbai
Class : Class 7
yeah the answer is a

Ans 2:

Aryan Ghatti from Mount saint mary school , Delhi
Class : Class 8

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is A.

Sugar syrup is neutral and hence the colour of blue litmus and red litmus remains unchanged. Tamarind juice is acidic, so blue litmus turns red but red litmus does not change its colour. Lime water and soap solution are basic in nature which turn red litmus blue whereas blue litmus remains unchanged.


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Lokesh Chhabra from Lilavatibai podar high school, Mumbai
Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Fish Y will be least affected as it is camouflaging with the sea weeds. Fish Y can easily escape from the predator by blending with the surrounding environment.


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VV Souri from LITTLE FLOWER SCHOOL , UPPAL HYDERABAD
Subject :NSO    Class : Class 7

Ans 1:

arjun from the bishops school camp , pune
Class : Class 7
at 4 degree celsius water starts expanding and 'x' shows the same the room temperature might have been near or equal to the freezing point of water(eg room temperature of regions like arctic and antarctic)

Ans 2:

kashvi from Amity, noida
Class : Class 7
Three states - gas , liquid & solid When hot water temp is going down it will be ultimate become solid ie ice But before becoming ice temp will stagnant for some time where in both states liquid & solid co-exist==> some part of liquid is in ice form. X is the same state where in solid and liquid will co-exist. Hence option 4 is correct(solidification& evaporation) Note: Could not attach gif .It would have made it more clear.

Ans 3:

pankaj srivastava from K R mangalam world school, vaishali
Class : Class 6
b is the correct answer

Ans 4:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 8
It cools towards room temperature so it does not freeze

Ans 5:

Hritvi from Podar International School, Mumbai
Class : Class 7
I think B is the correct answer because there is no solidification taking place or else the water would have turned into ice. plus no solidification can take place when water is at room temperature.

Ans 6:

Sanidhya Kapoor from Shikshantar, Gurugram
Class : Class 7
It is cooling towards room temperature so it does not solidify since the freezing point is below room temperature.

Ans 7:

Debarka Das Gupta from Silchar Don Bosco School, Silchar
Class : Class 7
i think b is the correct answer

Ans 8:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 7
why?

Ans 9:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 8
Also freezing and melting point of water is 0 degrees celsius

Ans 10:

Hritvi from Podar International School, Mumbai
Class : Class 7
There is no proper solution for this question which will make it more confusing as everyone will have different opinions in this question.

Ans 11:

Bhumi Chheda from SVKM J V Parekh International School, MUMBAI
Class : Class 7
i think b is correct

Ans 12:

Pisal Dhruv from Veer Bhagat Singh International School, Mumbai
Class : Class 7
i think b is the correct answer

Ans 13:

Anish from Vibgyor, Pune
Class : Class 7
I think b is correct because there is no solidification

Ans 14:

Mohinder singh from Sacred heart convent school, Ludhiana
Class : Class 7
B is the correct answer

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AHANA BAG from DELHI PUBLIC SCHOOL JOKA SOUTH KOLKATA, KOLKATA
Subject :NSO    Class : Class 3

Ans 1:

AHANA BAG from DELHI PUBLIC SCHOOL JOKA SOUTH KOLKATA, KOLKATA
Class : Class 4

Ans 2:

kalra Shaleen from Jalandhar, Jalandhar
Class : Class 4
b

Ans 3:

Aditri Dixit from TCIS, Bangalore
Class : Class 3

Ans 4:

suhas from vibgyor, bangalore
Class : Class 4
The answer is gibbous moon.

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Swarnava Pal from Vivekananda Mission School, Haldia
Subject :NSO    Class : Class 4

Ans 1:

Harry Potter from Le Setea , Paris
Class : Class 6
A

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is A.

Both plants ‘c’ and ‘d’ bear fruits. This means they are flowering plants as only flowers change into fruits. Plant ‘c’ grows in water i.e., it is an aquatic plant but plant ‘d’ does not grow in water thus, it is a nonaquatic plant. Hence 'W' and 'X' represent plant ‘c’ and ‘d’ respectively.


Ans 3:

ANAY GUPTA from CMS KANPUR ROAD LUCKNOW, LUCKNOW
Class : Class 4
a is right

Ans 4:

Aaryaman Pradhan from De paul School , Berhampur
Class : Class 5
a

Ans 5:

Harry Potter from Le Setea , Paris
Class : Class 6
A

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Dhruvan G from Indian School al Ghubra, Muscat
Subject :NSO    Class : Class 8

There are two different solutions in set up P and Q as shown in figure. The bulb in the set up P glows more brightly as compared to that of the set up Q. What are the possible causes for this?

(i) The connections of the circuit Q may be loose.
(ii) The liquid in Q may have small conductivity.
(iii) Liquid in P is equivalent to a battery while liquid in Q is equivalent to a cell of the battery of liquid P.

A Only (i) and (ii)
B Only (ii) and (iii)
C Only (i)
D Only (ii)


I don't understand (iii)

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is B

In given figures, both the circuits are tightly connected and both the liquids conduct electricity because both the bulbs are glowing. The bulb in the set up P glows more brightly as compared to that of the set up Q might be because of any of the two possibilities:

1. The liquid in Q may have small conductivity. 

2.  Liquid in P is equivalent to a battery while liquid in Q is equivalent to a cell of the battery of liquid P. 


Ans 2:

Ankit kumar Jha from Ryan International School, Ghaziabad
Class : Class 8
but how do we know that the circuit is conneced tightly???

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Prakrit Kumar from Ryan international school, Maharashtra
Subject :NSO    Class : Class 4
Hi

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Plaese mention your query


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Shiven Dinkar from DPS NOIDA Sector 30, Delhi
Subject :NSO    Class : Class 3

Ans 1:

Havi Jain from GEMS modern academy, Gurgaon
Class : Class 3
the answer of this question is drawing because when we dry something moisture is removed from it.

Ans 2:

Shiven Dinkar from DPS NOIDA Sector 30, Delhi
Class : Class 4
aayman please can you come online

Ans 3:

Aayman from DPS NOIDA, Noida
Class : Class 4
Well shiven

Ans 4:

Aayman Aamir from DPS NOIDA, Noida
Class : Class 3
Drying is the answer From aayman

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Dhruvan G from Indian School al Ghubra, Muscat
Subject :NSO    Class : Class 8

To every action there is always an equal and opposite reaction. Which of the following statements is correct regarding this?

A The buggy pulls the horse backward just as hard as the horse pulls the buggy forward. Both of them would not move forward if surface is frictionless.
B The horse pulls the buggy forward slightly harder than the buggy pulls the horse backward, so they move forward.
C The horse can pull the buggy forward only if the horse weighs more than the buggy.
D None of these


Does anybody know the solution?

Ans 1:

Anoushka Anbu from Amara Jyoti Public School, Bengaluru
Class : Class 8

Ans 2:

Rishit from Allen, Bangalore
Class : Class 8
it is one

Ans 3:

TARUN from DAV, DHANBAD
Class : Class 8
Ans.- (A) The buggy pulls the horse as backward just as hard the horse pulls the buggy forward. According to the IIIrd law of NLM( Newton's Laws of Motion), the action and reaction force takes place in two different bodies, in different direction , but of the same magnitude.

Ans 4: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is A.

The buggy pulls the horse backward just as hard as the horse pulls the buggy forward. Both of them would not move forward if surface is frictionless. 


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Anshuman Mishra from kv no 3, Bhubaneswar
Subject :NSO    Class : Class 6

Ans 1:

Naman from Svm, Nalasopara
Class : Class 6

Ans 2:

Naman from Svm, Nalasopara
Class : Class 6

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is B.

In the given Venn diagram X, Y and Z represent vitamin D, vitamin E and vitamin K, respectively. Deficiency of vitamin A causes night blindness and deficiency of vitamin C causes scurvy. Pellagra is caused by deficiency of vitamin B3. Vitamin B is a group of several vitamins like B1, B2, B3, B6, B12 and folic acid and is known as vitamin B complex.


Ans 4:

PS Gour from Chirec international schoo The best 30 years and beyond, Hyderabad
Class : Class 7
EASY PEASY LEMON SQUEEZY!

Ans 5:

SOUMYA SHAMBHAVI JHA from PODAR INTERNATIONAL SCHOOL, MUMBAI
Class : Class 6
In the given Venn diagram X, Y and Z represent vitamin D, vitamin E and vitamin K, respectively. Deficiency of vitamin A causes night blindness and deficiency of vitamin C causes scurvy. Pellagra is caused by deficiency of vitamin B3. Vitamin B is a group of several vitamins like B1, B2, B3, B6, B12 and folic acid and is known as vitamin B complex.

Ans 6:

Vedang Amonkar from Dr K B Hedgewar High School, Panaji
Class : Class 6
In the given Venn diagram X, Y and Z represent vitamin D, vitamin E and vitamin K, respectively. Deficiency of vitamin A causes night blindness and deficiency of vitamin C causes scurvy. Pellagra is caused by deficiency of vitamin B3. Vitamin B is a group of several vitamins like B1, B2, B3, B6, B12 and folic acid and is known as vitamin B complex.

Ans 7:

Neel bhalsod from Navrachana school sama, Vadodara
Class : Class 6
B

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