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Aishwarya Dwivedi from St. John's School, Marhauli, Varanasi
Subject :NSO    Class : Class 8

Ans 1:

reenanagar35@gmail.com from St. Anselms School, Jaipur
Class : Class 8
A domestic animal kept for milk production such as cows,buffaloes etc.

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Aishwarya Dwivedi from St. John's School, Marhauli, Varanasi
Subject :NSO    Class : Class 8

Ans 1:

tejas from Dav public school, MANDI
Class : Class 3
dynamic friction:the force that must be overcome to maintain steady motion of one body realative to another because they are in contact.for eg-sking. limiting friction:the force that can arise before the object begins to slide.it is slighyly greater than static friction for eg-internal combustion engines.

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krish from USHA MARTIN SCHOOL ,malda, malda
Subject :NSO    Class : Class 5

Ans 1:

ratankrmandal@yahoo.com from Vivekananda Mission School, Haldia
Class : Class 7
Baking Powder is a base.It is sodium hydroxide(NaOH). Vinegar is an acid.It is ascetic acid

Ans 2:

Soundharya from ISWK, Muscat
Class : Class 8
It gives softness to the food and too much in take is unhealthy.

Ans 3:

from , Serampore
Class : Class 7
CO 2 (Carbon dioxide)

Ans 4:

monishajv2006@gmail.com from manan vidya, Ranchi
Class : Class 5
baking powder is a type of powder used to make cakes,cookies and many more. vinegar is a type of liquid used to make cakes,cookies and other junk foods.they are also used to do experiment.

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dev mishra from Bal Bhavan Public School, New Delhi
Subject :NSO    Class : Class 7

Ans 1:

Sanchay from BIS Dwarka, Dwarka
Class : Class 8
Acids are the chemicals which contain hydrogen ions and taste sour. They attain a pH value below 7 and are corrosive in nature. Bases are generally hydroxides, carbonates, bicarbonates or oxides of metals and bitter to taste. They attain a pH value above 7 and are soapy to touch.

Ans 2:

Manas Malla from Visakha Valley School, Visakhapatnam
Class : Class 8
Acids are substance which are sour Bases are which are slippery/soapy to touch

Ans 3:

Abhishek from New Vision the olympiad school, KHAMMAM
Class : Class 7
acid is a word which came from latin "acidus/acidum mean sour.bases are the substances which give bitter in taste.

Ans 4:

ANSH from DAYANAND PUBLIC SCHOOL, SHIMLA
Class : Class 8
some materials like lemon and vinegar taste sour due to the presence of materials/ chemicals called acids. some materials like baking soda taste bitter due to the presence of chemicals / materials called bases.

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Aakash from Dpsrohini, New Delhi
Subject :NSO    Class : Class 6

Ans 1:

Akhilesh from BGS Public School, Kengeri, Bengaluru
Class : Class 7
" Miniature Circuit Breaker " is the full form of MCB.

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Raghav toshniwal from jnana prabodhini prashala, Pune
Class : Class 6
MAIN COURSEBOOK,why?

Ans 3:

Aaryan Maheshwari from MPS Jaipur, Jaipur
Class : Class 6
miniature circuit breaker

Ans 4:

Lakshya Garg from DMI, Meerut
Class : Class 6
miniature circuit breaker

Ans 5:

Aditya Mishra from Sri Kumaran Children's Academy, Bengaluru
Class : Class 6
MCB stands for Multiple Circuit Breaker

Ans 6:

Achintya k j from KENDRIYA VIDYALAYA GOLE MARKET, NEW DELHI
Class : Class 9
Miniature Circuit Breaker

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Namratha from JGRVK, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Pramit Bhattacharjee from Billabong High International School, Mumbai
Class : Class 4
land gets heated faster than water does so when the hot air above the land rises up the cool air from the sea moves towards the land keeping that place cool is known as sea breeze. land breeze is mainly there at night.it keeps the sea cool.that wind comes from the land to the sea.

Ans 2:

Yatharth from Mayoor School, Noida
Class : Class 6
A COASTAL BREEZE WHICH BLOW FROM SEA TO THE LAND IS DURING THE DAY IS CALLED SEA BREEZE.A COASTAL BREEZE WHICH BLOWS FROM LAND TO SEA DURING THE NIGHT IS SES BREEZE.

Ans 3:

Yatharth from Mayoor School, Noida
Class : Class 6
A COASTAL BREEZE WHICH BLOW FROM SEA TO THE LAND IS DURING THE DAY IS CALLED SEA BREEZE.A COASTAL BREEZE WHICH BLOWS FROM LAND TO SEA DURING THE NIGHT IS SES BREEZE.

Ans 4:

Pramit Bhattacharjee from Billabong High International School, Mumbai
Class : Class 4
land gets heated faster than water does so when the hot air above the land rises up the cool air from the sea moves towards the land keeping that place cool is known as sea breeze. land breeze is mainly there at night.it keeps the sea cool.that wind comes from the land to the sea.

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Namratha from JGRVK, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Sarthak Kumar from Delhi Public School, INDORE
Class : Class 7
During the day, land gets heated up much faster than the water in the sea .As the land becomes hot , it heats the air above it. this hot air rises up and the cool air from the sea blows towards the land to take its place . this wind that blows from the sea towards the land during the day is called the sea breeze . At night , the land cools down much faster than the sea which , in turn., cools the air above the land . The air above is still warmer . This warm air rises up and the cool air from the land rushes towards the sea to take its place .This wind that blows from the land towards the sea at night is called the land breeze .

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Azaan Abdullah from Green Apple Public School, Baddi
Subject :NSO    Class : Class 2

Ans 1:

Ashok Mishra from DPS NORTH BANGALORE, BENGALURU
Class : Class 5
nile is the lonest river.

Ans 2:

Namratha from JGRVK, Bengaluru
Class : Class 5
nile is the longest river in the world

Ans 3:

Pankaj Rajput from RBK GLOBAL SCHOOL, THANE
Class : Class 4
neal river

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Pranav from Sri Aurobindo Memorial school, Bengaluru
Subject :NSO    Class : Class 7

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Sanchay from BIS Dwarka, Dwarka
Class : Class 8
As an "ink remover" to remove ink off clothes.

Ans 2:

Sanchay from BIS Dwarka, Dwarka
Class : Class 8
The uses of ammonium hydroxide are as follows - To manufacture fertilizers like ammonium sulphate To manufacture rayon, dyes, etc.

Ans 3:

dev mishra from Bal Bhavan Public School, New Delhi
Class : Class 9
NH4OH is the chemical name of ammonium hydroxide.It is nitric acid.

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akshaj shukla from summer fields school, Gurgaon
Subject :NSO    Class : Class 7

Ans 1:

Sanchay from BIS Dwarka, Dwarka
Class : Class 8
Neutralisation is the process of adding base to an acid whereas galvanisation is the process of coating a layer of zinc on iron.

Ans 2:

Pranav from Sri Aurobindo Memorial school, Bengaluru
Class : Class 9
neutralisation is when an acid reacts with a base to form a salt and H2O and some heat is liberated galvanisation is when you add a layer of zinc upon iron so that it does not rust

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