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Subject :NSO    Class : Class 8

Ans 1:

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

Ans 2:

Class : Class 9
Electron Microscope

Ans 3:

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 4:

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

Ans 5:

Class : Class 8
barometer

Ans 6:

Class : Class 2
A Barometer

Ans 7:

Class : Class 2
Microscope

Ans 8:

Class : Class 8
compound microscope

Ans 9:

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

Ans 10:

Class : Class 8
barrometer

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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 5
microscope

Ans 2:

Class : Class 8
microscope

Ans 3:

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

Ans 4:

Class : Class 2
Microscope

Ans 5:

Class : Class 8
A barometer.

Ans 6:

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

Ans 7:

Class : Class 8
dipleidoscope

Ans 8:

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

Ans 9:

Class : Class 8
Barometer

Ans 10:

Class : Class 2
A Barometer

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
vaccum

Ans 2:

Class : Class 9
Vaccum

Ans 3:

Class : Class 8
VACCUM BUT LIGHT CAN

Ans 4:

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

Ans 5:

Class : Class 2
Vacuum

Ans 6:

Class : Class 2
Water

Ans 7:

Class : Class 8
vacuum

Ans 8:

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 9:

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 10:

Class : Class 8
Air

Ans 11:

Class : Class 8
Vacuum

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 2
hydrogen and oxygen

Ans 2:

Class : Class 10
Hydrogen & Oxygen

Ans 3:

Class : Class 9
Hydrogen,oxygen

Ans 4:

Class : Class 10
sodium carbonate

Ans 5:

Class : Class 10
HYDROGEN AND OXYGEN

Ans 6:

Class : Class 9
yes it is hydrogen and oxygen

Ans 7:

Class : Class 9
hydrogen and oxygen.

Ans 8:

Class : Class 9
Hydrogen and Oxygen H2O

Ans 9:

Class : Class 10
Sodium carbonate probably

Ans 10:

Class : Class 2
Sodium Carbonate

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Subject :NSO    Class : Class 10

Ans 1:

Class : Class 8
Larynx

Ans 2:

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 3:

Class : Class 8
Larynx

Ans 4:

Class : Class 10
LARYNX

Ans 5:

Class : Class 2
Larynx

Ans 6:

Class : Class 4
larnyx

Ans 7:

Class : Class 10

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