National Science Olympiad Forum By SOF Olympiad Trainer - Page 844
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Shweta Basu from Amity international School, Gurgaon
Subject :NSO    Class : Class 8

Ans 1:

Anu Sharma from DPS Noida, Noida
Class : Class 2
A Barometer

Ans 2:

Anu Sharma from DPS Noida, Noida
Class : Class 2
Microscope

Ans 3:

ashhad from sri chaitanya techno school, Bengaluru
Class : Class 8
barrometer

Ans 4:

Ronit Deshmukhya from U.P. Public School, Suri
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 5:

RiptideMel from Modern Vidya Niketan Senior Secondary School Sec 17, Faridabad
Class : Class 10
Microscope for cell/microorganism observation and magnifying glass for bigger objects

Ans 6:

Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Class : Class 8
It is a microscope as microorganisms can be seen only through it.

Ans 7:

Chitu Protim Boruah from Indus Academy, Jagiroad
Class : Class 8
barometer

Ans 8:

Mayank Patel from Maharaja Agarsen Public School , Ghaziabad
Class : Class 8
IF IT IS SMALL THEN WE USE MICROSCOPE .WHEN IT IS VERY SMALL ORGANISM THEN WE USE ELECTRON MICROSCPOE

Ans 9:

binayak mohanta from st.paul's school,rourkela, Rourkela
Class : Class 8
compound microscope

Ans 10:

Sumit from Dhanbad public school Hirak Branch, Dhanbad
Class : Class 9
Electron Microscope

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Shweta Basu from Amity international School, Gurgaon
Subject :NSO    Class : Class 7

Ans 1:

Anu Sharma from DPS Noida, Noida
Class : Class 2
Sodium Carbonate

Ans 2:

Ananya from Delhi Public School, Meerut
Class : Class 7
As you see the chemical formula for water is H20, it contains molecules of hydrogen and oxygen

Ans 3:

Anu Sharma from DPS Noida, Noida
Class : Class 2
hydrogen and oxygen

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Shweta Basu from Amity international School, Gurgaon
Subject :NSO    Class : Class 5

Ans 1:

Anu Sharma from DPS Noida, Noida
Class : Class 2
A Barometer

Ans 2:

mitra from dav model school, Durgapur
Class : Class 5
Microscope or barameter!? Who knows??!! I think it is microscope

Ans 3:

Soundharya from ISWK, Muscat
Class : Class 8
Barometer

Ans 4:

Seenu Vasan from chinmaya vidyalaya, nagapattinam
Class : Class 5
microscope

Ans 5:

Ujjwal Upadhyay from Navy Children school, Vasco
Class : Class 6
Guys! Are you crazy? microscope is used to see microorganisms. The answer is weather camera.

Ans 6:

RITAJA MISHRA from DPS NORTH KOLKATA, Kolkata
Class : Class 8
A barometer.

Ans 7:

UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Class : Class 8
dipleidoscope

Ans 8:

Soundharya from ISWK, Muscat
Class : Class 8
microscope

Ans 9:

Anu Sharma from DPS Noida, Noida
Class : Class 2
Microscope

Ans 10:

Ujjwal Upadhyay from Navy Children school, Vasco
Class : Class 6
Guys! Are you crazy? microscope is used to see microorganisms.barometer is used to measure the amount of rain.

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Shweta Basu from Amity international School, Gurgaon
Subject :NSO    Class : Class 8

Ans 1:

Sumit from Dhanbad public school Hirak Branch, Dhanbad
Class : Class 9
Vaccum

Ans 2:

vikram Aditya from new era high school , patna
Class : Class 8
Vacuum

Ans 3:

Mayank Patel from Maharaja Agarsen Public School , Ghaziabad
Class : Class 8
VACCUM BUT LIGHT CAN

Ans 4:

vikram Aditya from new era high school , patna
Class : Class 8
Air

Ans 5:

Tejan Gandhi from Chanderbala Modi Academy, Ankleshwar
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 6:

Ronit Deshmukhya from U.P. Public School, Suri
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 7:

Anu Sharma from DPS Noida, Noida
Class : Class 2
Vacuum

Ans 8:

Aditya Prasad from Notre Dame , Gumla
Class : Class 9
Through solids since the atoms are closely packed in them.

Ans 9:

Khavya from Sindhi Model School, Chennai
Class : Class 8
vacuum

Ans 10:

Anu Sharma from DPS Noida, Noida
Class : Class 2
Water

Ans 11:

binayak mohanta from st.paul's school,rourkela, Rourkela
Class : Class 8
vaccum

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Shweta Basu from Amity international School, Gurgaon
Subject :NSO    Class : Class 9

Ans 1:

keerthana from kakatiya high school, suryapet
Class : Class 9
Hydrogen,oxygen

Ans 2:

Anu Sharma from DPS Noida, Noida
Class : Class 2
Sodium Carbonate

Ans 3:

Namanjain5589@Gmail.com from Yugantar Public School , Rajnandgaon
Class : Class 9
Hydrogen and Oxygen H2O

Ans 4:

Sarthak Praveen Modhe from St. Thomas Convent Sr. Sec. School, Bhopal
Class : Class 9
yes it is hydrogen and oxygen

Ans 5:

Anu Sharma from DPS Noida, Noida
Class : Class 2
hydrogen and oxygen

Ans 6:

Wyesvatha.J from Geethaanjali All India Senior Secondary School, Erode
Class : Class 10
sodium carbonate

Ans 7:

Nimesh from Dhanbad public school Hirak Branch, Dhanbad
Class : Class 10
Hydrogen & Oxygen

Ans 8:

abhinav from st. mary's school, dwarka, New Delhi
Class : Class 9
hydrogen and oxygen.

Ans 9:

Vipup Sharma from HAPPY HOME PUBLIC SCHOOL SECTOR 11 ROHINI, New Delhi
Class : Class 10
HYDROGEN AND OXYGEN

Ans 10:

Gh from Mahatma, Ghaziabad
Class : Class 10
Sodium carbonate probably

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Shweta Basu from Amity international School, Gurgaon
Subject :NSO    Class : Class 10

Ans 1:

anjali1508in@gmail.com from little angels school pilibhit, pilibhit
Class : Class 8
Larynx

Ans 2:

Anu Sharma from DPS Noida, Noida
Class : Class 2
Larynx

Ans 3:

Nandana from St Thomas Residential School, Trivandrum
Class : Class 10
Larynx

Ans 4:

Vaidehi from Agragami Convent School.Wardha., wardha
Class : Class 10
LARYNX

Ans 5:

Manasi Gupta from Delhi Public School,Durg, Durg
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:

Manasi Gupta from Delhi Public School,Durg, Durg
Class : Class 10

Ans 7:

Aryan Sirohi from mount litera zee school, Bengaluru
Class : Class 4
larnyx

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