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Nandana from St Thomas Residential School, Trivandrum
Subject :NSO    Class : Class 5

Ans 1:

Saswatayu Sengupta from Don Bosco Park Circus , Kolkata
Class : Class 7
A

Ans 2:

Aaditya Vichare from St. John's Universal School, Mumbai
Class : Class 10
Diffusion is the correct answer by my views and opinions

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Malank Chakravartty from Podar International School, Mumbai
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

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

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Vivaan Kumar from Heritage Xperiential Learning School, Gurgaon
Subject :NSO    Class : Class 4

Ans 1:

Sohana Roy Barman from Delhi Public School, Durgapur
Class : Class 6
not understood at all

Ans 2:

Vihaan Sadekar from GIIS, Singapore
Class : Class 4
Hi, please clarify the answer. Not understood.

Ans 3:

from kalyan, Kalyan
Class : Class 6

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Aditya Prasad from Notre Dame , Gumla
Subject :NSO    Class : Class 9

Ans 1:

Rahul kumar from Khublal yadav smarak high school bishanpur, Jamui
Class : Class 9
Correct ans is opt (B) therefore fluidity mean tendency of flow so it is greatest in gases

Ans 2:

Preeti from Kv shillong , Shillong
Class : Class 9
C

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abhinav from fitjee world school, Hyderabad
Subject :NSO    Class : Class 7

Ans 1:

Aditya kumar from Sapphire International School, Noida
Class : Class 8
a neurotoxic chemical warfare agent

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naman from dps noida noida, Noida
Subject :NSO    Class : Class 6

Ans 1:

Sunita from Dps, Greater Noida
Class : Class 9
Wet' is ultimately just a word that applies to water. What we feel as wetness is actually coldness as the water evaporates. Below is an experiment from the Institute of Physics to test the feeling of 'wetness' between two different liquids: "The feeling of wetness is actually coldness. You can test this by comparing water with another liquid - cooking oil - which doesn't evaporate so freely. Fill two small cups (egg-cups are ideal) - one with water, and the other with cooking oil. (Young children should ask an adult to help.) Let both liquids come to room temperature for a day, or overnight. Dip one index finger in each liquid, lift them out, and then observe for a few minutes." Explanation: Liquids make surfaces wet (i.e. they stick to many solid surfaces) due to the electrostatic (opposite charges) forces between molecules. Water is polar—it has an uneven spread of electrical charge—which makes one end of the molecule positive and the other end negative. This causes water to be attracted to many surfaces and also explains many other properties of water.

Ans 2:

Nandana from St Thomas Residential School, Trivandrum
Class : Class 10
Wet' is ultimately just a word that applies to water. What we feel as wetness is actually coldness as the water evaporates. Below is an experiment from the Institute of Physics to test the feeling of 'wetness' between two different liquids: "The feeling of wetness is actually coldness. You can test this by comparing water with another liquid - cooking oil - which doesn't evaporate so freely. Fill two small cups (egg-cups are ideal) - one with water, and the other with cooking oil. (Young children should ask an adult to help.) Let both liquids come to room temperature for a day, or overnight. Dip one index finger in each liquid, lift them out, and then observe for a few minutes." Explanation: Liquids make surfaces wet (i.e. they stick to many solid surfaces) due to the electrostatic (opposite charges) forces between molecules. Water is polar—it has an uneven spread of electrical charge—which makes one end of the molecule positive and the other end negative. This causes water to be attracted to many surfaces and also explains many other properties of water.

Ans 3:

kushgara from suncity world school, gurugram
Class : Class 6
because it has to be wet . or ask this question to god

Ans 4:

Roli from admin, Noida
Class : Class 3
Wet' is ultimately just a word that applies to water. What we feel as wetness is actually coldness as the water evaporates. Below is an experiment from the Institute of Physics to test the feeling of 'wetness' between two different liquids: "The feeling of wetness is actually coldness. You can test this by comparing water with another liquid - cooking oil - which doesn't evaporate so freely. Fill two small cups (egg-cups are ideal) - one with water, and the other with cooking oil. (Young children should ask an adult to help.) Let both liquids come to room temperature for a day, or overnight. Dip one index finger in each liquid, lift them out, and then observe for a few minutes." Explanation: Liquids make surfaces wet (i.e. they stick to many solid surfaces) due to the electrostatic (opposite charges) forces between molecules. Water is polar—it has an uneven spread of electrical charge—which makes one end of the molecule positive and the other end negative. This causes water to be attracted to many surfaces and also explains many other properties of water.

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rashmikedia.ca from JSS PRIVATE SCHOOL, DUBAI, Dubai
Subject :NSO    Class : Class 6

Ans 1:

Souraj Saigovindh from Sri chaitanya Techno school, Tirupur
Class : Class 6
I need help on how to arrive this answer, please share the details

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naman from dps noida noida, Noida
Subject :NSO    Class : Class 5

Ans 1:

Nandana from St Thomas Residential School, Trivandrum
Class : Class 10
Leaves change colour due to the reduction of amount of the green colour pigment named chlorophyll.

Ans 2:

Saswatayu Sengupta from Don Bosco Park Circus , Kolkata
Class : Class 7
Leaves change colour due to the reduction of amount of the green colour pigment named chlorophyll.

Ans 3:

Sushil Kumar from dpsnoida, Noida
Class : Class 7
Leaves are colored by molecules called pigments. The pigment that causes leaves to be green is chlorophyll. Chlorophyll is important for plants to make food using sunlight. During spring and summer when there is plenty of sunlight, plants make a lot of chlorophyll. In autumn when it starts to get cold, some plants stop making chlorophyll. Instead, those plants break down chlorophyll into smaller molecules. As chlorophyll goes away, other pigments start to show their colors. This is why leaves turn yellow or red in fall.

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Abhi Shiv from Rose Public School, Darbhanga
Subject :NSO    Class : Class 10

Ans 1:

Vaidehi from Agragami Convent School.Wardha., wardha
Class : Class 10
actually water is neutral. IRRESPECTIVE of volume ,it will contain equal no. of negative and positive charges. according to your que., you have 0.3L of water. assume that you have 36g of water(since the weight is not mentioned).Then calculate total moles of it(=2 moles).THEN ,calculate total moles of (H+) IONS i.e, +charge[=4 moles].Then,4*6.022*10power23. finally,total no. of +charge=24.088*10power23. I hope this will help you.

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shauarya yadav from GURU TEGH BAHADUR PUBLIC SCHOOL, Meerut
Subject :NSO    Class : Class 5

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