National Science Olympiad Forum By SOF Olympiad Trainer - Page 921
  1. Home
  2. /  Forum

User Forum

Ask Your Question
from ,
Subject :NSO    Class : Class 2

Ans 1:

Azaan Abdullah from Green Apple Public School, Baddi
Class : Class 4
Sun

Ans 2:

Madhurya Ahuja from The Modern School , NCR
Class : Class 10
Sun

Ans 3:

Anu Sharma from DPS Noida, Noida
Class : Class 2
The Sun

Ans 4:

Megha Parakh from dps raipur, Raipur
Class : Class 5
Sun

Post Your Answer

from ,
Subject :NSO    Class : Class 5

Ans 1:

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

Ans 2:

Soundharya from ISWK, Muscat
Class : Class 8
Sublimation

Ans 3:

UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Class : Class 8
Deposition is a thermodynamic process, a phase transition in which gas transforms into solid. The reverse of deposition is sublimation. One example of deposition is the process by which, in sub-freezing air, water vapor changes directly to ice without first becoming a liquid.

Ans 4:

Anu Sharma from DPS Noida, Noida
Class : Class 2
A change of state from Solid to gas without changing to liquid state is called Sub Limation.

Post Your Answer

from ,
Subject :NSO    Class : Class 8

Ans 1:

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

Ans 2:

from ,
Class :
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 3:

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

Ans 4:

from ,
Class :
barometer

Ans 5:

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

Ans 6:

from ,
Class :
compound microscope

Ans 7:

from ,
Class :
Electron Microscope

Ans 8:

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

Ans 9:

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

Ans 10:

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

Post Your Answer

from ,
Subject :NSO    Class : Class 7

Ans 1:

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

Ans 2:

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

Ans 3:

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

Post Your Answer

from ,
Subject :NSO    Class : Class 5

Ans 1:

Soundharya from ISWK, Muscat
Class : Class 8
Barometer

Ans 2:

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

Ans 3:

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

Ans 4:

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.

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:

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

Ans 7:

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

Ans 8:

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

Ans 9:

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

Ans 10:

Soundharya from ISWK, Muscat
Class : Class 8
microscope

Post Your Answer

from ,
Subject :NSO    Class : Class 8

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

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

Ans 5:

from ,
Class :
vaccum

Ans 6:

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

Ans 7:

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 8:

from ,
Class :
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 9:

from ,
Class :
VACCUM BUT LIGHT CAN

Ans 10:

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

Ans 11:

from ,
Class :
Vaccum

Post Your Answer