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UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Subject :NSO    Class : Class 5

Ans 1:

Jairaj Singh Basur from Vivek High School, Chandigarh
Class : Class 7
Echolocation is to use the echo( vibrations of sound bounced off by objects ) to locate certain items. Bats use echolocation to travel.

Ans 2:

ratankrmandal@yahoo.com from Vivekananda Mission School, Haldia
Class : Class 7
Echolocation is the using of echo to locate object or find a prey.Animals like Bat sends vibrations that bounce off from the body of their prey.Then they with the help the vibrations they can locate food easily.

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UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Subject :NSO    Class : Class 5

Ans 1:

Soundharya from ISWK, Muscat
Class : Class 8
Nomads are people who live in hilly and mountain regions.

Ans 2:

Ananya from Vibgyor High, Bengaluru
Class : Class 6
early man are called nomads i.e move from one place to another.

Ans 3:

Tanvi Ritisha Dash from delhi public school bangalore east, Bengaluru
Class : Class 6
NOMADS ARE THOSE PEOPLE WHO MOVE FROM ONE PLACE TO ANOTHER AND DO NOT HAVE A PERMANENT HOUSE

Ans 4:

Meowness from Why should I tell?, Wow
Class : Class 5
People who do not have houses, they roam around on place and another.

Ans 5:

RITAJA MISHRA from DPS NORTH KOLKATA, Kolkata
Class : Class 8
When early human beings noticed that they are not getting sufficient amount of food to survive, they started moving from one place to another in search of food and shelter and they were called nomads.

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Mohit from Carmel High school Gadchiroli , Gadchiroli
Subject :NSO    Class : Class 8

Ans 1:

Avi from Delhi Public School Vadodara, Vadodara
Class : Class 9
in diamond

Ans 2:

Sumit from Dhanbad public school Hirak Branch, Dhanbad
Class : Class 9
Aluminium i.e. 6420m/s

Ans 3:

swayam agrawal from Udgam school for children, Ahmedabad
Class : Class 8
iron or steel

Ans 4:

Anidroid ,Aniruddha from Modern DPS, Faridabad
Class : Class 8
Aluminium

Ans 5:

Nirdesh Prajapati from K V No. 3, Jaipur
Class : Class 8
in the hardest metal Chromium

Ans 6:

Mayank Patel from Maharaja Agarsen Public School , Ghaziabad
Class : Class 8
STEEL

Ans 7:

Aishwarya Dwivedi from St. John's School, Marhauli, Varanasi
Class : Class 9
Steel is an alloy....and he asked metal. I guess the answer is Aluminium.

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Daksh Rajesh Lolienkar from Doha Modern Indian School, Doah Qatar
Subject :NSO    Class : Class 5

Ans 1:

UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Class : Class 5
conduction -the transfer of heat between two parts of a stationary system, caused by a temperature difference between the parts. diffusion -a reflection or refraction of light or other electromagnetic radiation from an irregular surface or an erratic dispersion through a surface; scattering.

Ans 2:

Ananya from Vibgyor High, Bengaluru
Class : Class 6
thermal conduction was originally called as diffusion

Ans 3:

Soundharya from ISWK, Muscat
Class : Class 8
The transfer of heat from one substance to another by direct contact is called conduction or diffusion.

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from ,
Subject :NSO    Class : Class 5

Ans 1:

UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Class : Class 5
Turpentine is used by the painter for thinning oil colors and for making ... irritations on their hands after contact with even small amounts of turpentine. ... use of turpentine to remove oil paint

Ans 2:

yadav1972namita@gmail.com from MANAV RACHNA INTERNATIONAL SCHOOL CHARMWOOD FARIDABAD HARYANA, New Delhi
Class : Class 6
Because varnish paints are immixable with water but it is mixable with turpentine oil.

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Amitesh from Delhi Public School Greater Noida, Noida
Subject :NSO    Class : Class 5

Ans 1:

UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Class : Class 5
The American astronomer Edwin Hubble made the observations in 1925 and was the first to prove that the universe is expanding. He proved that there is a direct relationship between the speeds of distant galaxies and their distances from Earth. This is now known as Hubble's Law.

Ans 2:

Anshuman pathak from DPS NOIDA, Noida
Class : Class 5
Humble law

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PUSHKAR from DAV PUBLIC SCHOOL, Gaya
Subject :NSO    Class : Class 3

Ans 1:

Anish Chawla from Cambridge Co-ed School, Jalandhar
Class : Class 3
Rhopalocera or Lepidoptera

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Sudip from DPS Gurgaon, New Delhi
Subject :NSO    Class : Class 4

Ans 1:

Sudip from DPS Gurgaon, New Delhi
Class : Class 4
The full form of IAU is International Astronomical Union.

Ans 2:

Rishit kunwar from Dps mathura road, New Delhi
Class : Class 4
Uranus

Ans 3:

SHREYAS ANDOTRA from JODHAMAL PUBLIC SCHOOL, Jammu
Class : Class 6
Jupiter has 3 Rings, Uranus has 13 Rings, Neptune has 6 Rings & Saturn has 12 Rings.

Ans 4:

Pranati Choudhury from Saint Joseph School, Kendrapara
Class : Class 7
Jupiter has 3 rings. Uranus has 13 rings. Neptune has 5 rings

Ans 5:

ARNAV GARG from PRESIDIUM SCHOOL, New Delhi
Class : Class 6
Uranus

Ans 6:

Namratha from JGRVK, Bengaluru
Class : Class 5
uranus

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Dristi Sharma from St. Agnes High School, Kharagpur
Subject :NSO    Class : Class 10

Ans 1:

akhil sharma from Delhi Public School , Mathura
Class : Class 10
regular

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ANNWESHA PAITH from BHARATIYA VIDYA BHAVAN'S R.K.SARDA VIDYA MANDIR, RAIPUR, Raipur
Subject :NSO    Class : Class 7

Ans 1:

Manan Sharma from Naini Valley School, Kathgodam
Class : Class 7
peristaltic movement

Ans 2:

gaurang gupta from mount litra zee school, uttar pradesh
Class : Class 8
it reach stomach because of Peristalsis movement

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