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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 2
A Barometer

Ans 2:

Class : Class 10
Microscope for cell/microorganism observation and magnifying glass for bigger objects

Ans 3:

Class : Class 8
barrometer

Ans 4:

Class : Class 8
barometer

Ans 5:

Class : Class 9
Electron Microscope

Ans 6:

Class : Class 8
compound microscope

Ans 7:

Class : Class 8
IF IT IS SMALL THEN WE USE MICROSCOPE .WHEN IT IS VERY SMALL ORGANISM THEN WE USE ELECTRON MICROSCPOE

Ans 8:

Class : Class 8
If it is small to see , we can use magnifying glass but if it is micro organism , we can see only through a microscope.

Ans 9:

Class : Class 8
It is a microscope as microorganisms can be seen only through it.

Ans 10:

Class : Class 2
Microscope

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 2
hydrogen and oxygen

Ans 2:

Class : Class 7
As you see the chemical formula for water is H20, it contains molecules of hydrogen and oxygen

Ans 3:

Class : Class 2
Sodium Carbonate

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 2
A Barometer

Ans 2:

Class : Class 6
Guys! Are you crazy? microscope is used to see microorganisms. The answer is weather camera.

Ans 3:

Class : Class 8
Barometer

Ans 4:

Class : Class 8
microscope

Ans 5:

Class : Class 6
Guys! Are you crazy? microscope is used to see microorganisms.barometer is used to measure the amount of rain.

Ans 6:

Class : Class 5
microscope

Ans 7:

Class : Class 2
Microscope

Ans 8:

Class : Class 8
dipleidoscope

Ans 9:

Class : Class 8
A barometer.

Ans 10:

Class : Class 5
Microscope or barameter!? Who knows??!! I think it is microscope

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
Vaccum

Ans 2:

Class : Class 9
Through solids since the atoms are closely packed in them.

Ans 3:

Class : Class 2
Vacuum

Ans 4:

Class : Class 8
vaccum

Ans 5:

Class : Class 8
First of all , many have answered it vaccum but it is absolutely wrong because sound can not travel in vaccum and most probably the correct answer will be solid.

Ans 6:

Class : Class 8
VACCUM BUT LIGHT CAN

Ans 7:

Class : Class 8
In solids, especially when atoms are closely packed, metals.. Sound does travel in water and air with slow speed 1000, 300 m/s respectively whereas in metals with 3000 m/s.. And sound doesn't travel in vaccum at all..

Ans 8:

Class : Class 2
Water

Ans 9:

Class : Class 8
Air

Ans 10:

Class : Class 8
Vacuum

Ans 11:

Class : Class 8
vacuum

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
Hydrogen,oxygen

Ans 2:

Class : Class 10
HYDROGEN AND OXYGEN

Ans 3:

Class : Class 10
sodium carbonate

Ans 4:

Class : Class 10
Sodium carbonate probably

Ans 5:

Class : Class 2
hydrogen and oxygen

Ans 6:

Class : Class 2
Sodium Carbonate

Ans 7:

Class : Class 9
hydrogen and oxygen.

Ans 8:

Class : Class 9
yes it is hydrogen and oxygen

Ans 9:

Class : Class 9
Hydrogen and Oxygen H2O

Ans 10:

Class : Class 10
Hydrogen & Oxygen

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Subject :NSO    Class : Class 10

Ans 1:

Class : Class 10

Ans 2:

Class : Class 4
larnyx

Ans 3:

Class : Class 2
Larynx

Ans 4:

Class : Class 8
Larynx

Ans 5:

Class : Class 10
Larynx. It is a tube about 2 inches (5cm) long in adults. It sits above the windpipe (trachea) in the neck and in front of the food pipe. The food pipe in the upper part of the neck is called the pharynx.

Ans 6:

Class : Class 8
Larynx

Ans 7:

Class : Class 10
LARYNX

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