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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:

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

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

Ans 3:

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

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

Ans 1:

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

Ans 2:

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

Ans 3:

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.

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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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Ritesh N Das from Adamas International School, Kolkata
Subject :NSO    Class : Class 6

Ans 1:

abhinav from fitjee world school, Hyderabad
Class : Class 8
caco3

Ans 2:

Krish Sharma from Delhi Public School, New Delhi
Class : Class 6
the answer is - calcium carbonate

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Vedant Mehta from Bhagwati International Public School, Patan, Gujarat
Subject :NSO    Class : Class 7

Ans 1:

ANSH from DAYANAND PUBLIC SCHOOL, SHIMLA
Class : Class 8
pavour hydrogine

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Pranav from Sri Aurobindo Memorial school, Bengaluru
Class : Class 9
no full form available

Ans 3:

Julian Thomas Abraham from Madhava Kripa school , Manipal
Class : Class 8
It is the negative logarithm of H+ ions

Ans 4:

Manas Malla from Visakha Valley School, Visakhapatnam
Class : Class 8
pH means power of hydrogen

Ans 5:

Pulkit mittal from GAIL DAV PUBLIC SCHOOL, AURAIYA
Class : Class 9
potense of hydrogen or power of hydrogen is basically a test used to determine strengh of a acid or a base.

Ans 6:

riddhikaa from sri kumaran public school, Bengaluru
Class : Class 7
The full form is povouir hydrogene

Ans 7:

Gyanajyoti Mishra from J.N.V., Jajpur
Class : Class 10
pH means power of hydrogen/ povouir hydrogen, means concentration of hydrogen ions in an aqueous solution.So it is used to identify whether a substance is acid,base or neutral.

Ans 8:

akshaj shukla from summer fields school, Gurgaon
Class : Class 7
pH is a scale used to specify the acidity or basicity of an aqueous solution

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

Ans 1:

G. Priyanka from Chennai Public School, Chennai
Class : Class 8
bases that are completely soluble in water

Ans 2:

Vedant Mehta from Bhagwati International Public School, Patan, Gujarat
Class : Class 8
Alkalies are the bases that are soluble in water.Some bases are not soluble in water they are not called alkalies

Ans 3:

Manas Malla from Visakha Valley School, Visakhapatnam
Class : Class 8
Alkalies are the bases which are soluble in water

Ans 4:

Sanchay from BIS Dwarka, Dwarka
Class : Class 8
Alkalis are water-soluble bases. They are spelt 'alkalis and not alkaleis'.

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

Ans 1:

Gyanajyoti Mishra from J.N.V., Jajpur
Class : Class 10
Mixture whose components are not uniform means having different properties

Ans 2:

Soham chakravorty from Delhi public school, Bengaluru
Class : Class 7
so i hope you know what a mixture is. well a mixture a mixture is two or more elements or compounds mixed together but not chemically combined are called mixtures . they can be easily seperated. example: air is mixture of gases like nitrogen oxygen etc. now a heterogenious mixture is a mixture that composes of components that are not uniform and have totally different properties. i hope this answer helps.

Ans 3:

Manas Malla from Visakha Valley School, Visakhapatnam
Class : Class 8
Mixtures which are not uniform

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

Ans 1:

Pranav from Sri Aurobindo Memorial school, Bengaluru
Class : Class 9
mixtures in which the properties of the elements are retained

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

Ans 1:

Aman sahu from Arya Gurukul, kalyan
Class : Class 8
A Homogenous Mixture contains a uniform composition type of a mixture. Some examples, are air.

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riddhikaa from sri kumaran public school, Bengaluru
Class : Class 7
A mixture which has uniform composition and properties throughout. Ex:air

Ans 3:

Manas Malla from Visakha Valley School, Visakhapatnam
Class : Class 8
A mixture which is uniform is called homogenous mixture

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