National Science Olympiad Forum By SOF Olympiad Trainer - Page 846
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Subject :NSO    Class : Class 5

Ans 1:

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

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

Ans 2:

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

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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:

SHREYAS ANDOTRA from RYAN INTERNATIONAL SCHOOL, CHANDIGARH
Class : Class 8
Jupiter has 3 Rings, Uranus has 13 Rings, Neptune has 6 Rings & Saturn has 12 Rings.

Ans 2:

Namratha from JGRVK, Bengaluru
Class : Class 5
uranus

Ans 3:

ARNAV GARG from PRUDENCE SCHOOL, New Delhi
Class : Class 10
Uranus

Ans 4:

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

Ans 5:

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

Ans 6:

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

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

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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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Wyesvatha.J from Geethaanjali All India Senior Secondary School, Erode
Subject :NSO    Class : Class 9

Ans 1:

Nimesh from Dhanbad public school Hirak Branch, Dhanbad
Class : Class 10
(a)livestocks,algae

Ans 2:

naman.namanjhavar@gmail.com from ST.PAUL'S SCHOOL, Gwalior
Class : Class 10
neem leaves

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gaurang gupta from mount litra zee school, uttar pradesh
Subject :NSO    Class : Class 7

Ans 1:

ACHYUT SINGH from DELHI PUBLIC SCHOOL MANDLA ROAD , Jabalpur
Class : Class 10
BECAUSE IT IS AN INSULATOR.....IT CANNOT CONDUCT ELECTRICITY.....

Ans 2:

Manan Sharma from Naini Valley School, Kathgodam
Class : Class 7
Convection is the transfer of heat through liquids or gases. Example: When cold air enters your home, it mixes with warm air. Heat energy is transferred to the cooler air, and the overall temperature of the room is lowered. Result: More energy is required to replace the heat transferred to the cooler air.

Ans 3:

Gyanepsaa from HUS International, Chennai
Class : Class 10
Metals that conduct heat allow free electrons to roam around, which vibrate and conduct energy, while heat insulators do the opposite.

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gaurang gupta from mount litra zee school, uttar pradesh
Subject :NSO    Class : Class 7

Ans 1:

ANNWESHA PAITH from BHARATIYA VIDYA BHAVAN'S R.K.SARDA VIDYA MANDIR, RAIPUR, Raipur
Class : Class 8
Wood doesn't even enter the liquid phase when it gets hot. It cannot even sublime.

Ans 2:

gaurang gupta from mount litra zee school, uttar pradesh
Class : Class 8

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kushal from indian school sohar, sohar
Subject :NSO    Class : Class 6

Ans 1:

Lakshya Garg from DMI, Meerut
Class : Class 6
density of wood is less than water.

Ans 2:

VANSH GUPTA from MDS SCHOOL , SEC -3, UDAIPUR, Udaipur
Class : Class 7
wood floats in water because it weighs less than amount of water

Ans 3:

S.V.Koundinya from Sri Chaitanya School, Hyderabad
Class : Class 7
Wood floats in water as its density is less than the density of water

Ans 4:

S.Mukunthan from D.A.V.Public School, Chennai
Class : Class 6
Specific gravity/density

Ans 5:

apparna from chinmaya vidyalaya, B.S.City
Class : Class 6
its density

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