National Science Olympiad Forum By SOF Olympiad Trainer

priyanshi gupta from opg world school , delhi

Subject :NSO Class : Class 4

Rohan flicked the same coin with equal force on three different surfaces X, Y and Z. The distance travelled by the coin on different surfaces in one stroke is tabulated as shown.

Now, select the correct option regarding it.

A X could be glass and Z could be cardboard.
B Y could be cardboard and Z could be polished plane mirror surface.
C X could be laminated plastic sheet and Y could be sandpaper.
D X could be marble floor and Z could be jute mat.

View All Answers (4)

Ans 1:

Ashwak from Cambridge, Jalandhar

Class : Class 9

B is the correct answer

Ans 2:

Sanaya Singh from Hiranandani Foundation, Mumbai

Class : Class 2

its b :|

Ans 3: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is B.

Ans 4:

Ibrahim Aslam from uttam, Ghaziabad

Class : Class 5

B is correct answer!!!ð

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MRUDUL MAYANK MOHANTY from Loyola school , Bhubaneswar

Subject :NSO Class : Class 8

Liquids and gaseous fuels have more advantages over solid fuels. Some of the advantages are
(i) Calorific value of liquid and gaseous fuels is higher than the solid fuels.
(ii) Liquids and gaseous fuels have higher ignition temperatures than the solid fuels.
(iii) Liquids and gaseous fuels are easier to store since solid fuels occupy lot of space.
(iv) Liquids and gaseous fuels burn completely, leaving no residue.
The correct advantages are

A (i), (ii) and (iii)
B (i), (iii) and (iv)
C (ii), (iii) and (iv)
D (i), (ii) and (iv).

View All Answers (5)

Ans 1:

Kriday from KDAV, Jamnagar

Class : Class 4

in the summary,it is already given that the first option is correct,still it dosent show so in the above question

Ans 2:

Jitendra Kumar Pareek from Maheshwari public school , Jaipur

Class : Class 8

C

Ans 3:

Pranav Nayal from Birla Vidya Niketan, New Delhi

Class : Class 9

There is no fuel till now which can't burn without leaving any harmful residue.Thus , option A should be the answer

Ans 4:

tamojit das from techno India Group Public School , Chinsura

Class : Class 8

The information of study materials of this chapter from this site is wrong.Please rectify the data of study material.

Ans 5:

Aadvik saini from Mvn sector 17, Faridabad

Class : Class 8

C is the correct option , B is the wrong one

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malavika suresh from Ryan International school , bangalore

Subject :NSO Class : Class 3

Refer to the given figure of human digestive system.

In which of the labelled parts no digestion of food takes place?

A P and S only
B Q and R only
C P only
D S only

View All Answers (5)

Ans 1:

Daksha Neill from Somerville school, Delhi

Class : Class 7

ignore the prior comment....

Ans 2:

Daksha Neill from Somerville school, Delhi

Class : Class 7

Please explain why D.....

Ans 3:

Ashwak from Cambridge, Jalandhar

Class : Class 9

C

Ans 4:

subhang sarkar from Aditya Academy, Kolkata

Class : Class 3

anwser will be C

Ans 5: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is D.

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Dishen dharmenra patel from Anand niketan to the satellite , Ahmedabad

Subject :NSO Class : Class 3

Which one of the following questions could all these pupils answer?

(A) Is the orchid purple or blue?

(B) Is the watch ticking or not?

(C) Is the coffee cold or hot?

(D) Is the soap scented or not?

View All Answers (1)

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is C.

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Alok Roy Choudhury from ,

Subject :NSO Class : Class 8

Three different positions of a dice are shown below. Which number is opposite to number 1 ?

(a) 3
(b) 2
(c) 6
(d) 5

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Ans 1:

Harshit from Army Public School, Lucknow

Class : Class 9

Hi friend the ans is (D) 5. HOPE IT HELPS!!!!

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VIJAYA SREYAS B from NARAYANA OLYMPIAD SCHOOL KUKATPALLY, HYDERABAD

Subject :NSO Class : Class 6

What is the universe made of?

View All Answers (3)

Ans 1:

Sarim raza from St Xavier, Hzaribagh Jharkhand

Class : Class 6

Universe is huge vast open space.. It contains galaxies, solar systems and celestial bodies etc.. No, one can say how universe begin .

Ans 2:

JIVESH KUMAR from Cochin refineries school , Kochi

Class : Class 6

universe is made of many galaxies .

Ans 3:

JIVESH KUMAR from Cochin refineries school , Kochi

Class : Class 6

universe is made of many galaxies .

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Pradhyumna from J S S Public School, Bengaluru

Subject :NSO Class : Class 4

The given picture shows two boys trying to move a boat from the beach into the water. Identify the forces as represented with labelled arrows D, E and F?

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Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is B.

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Pradhyumna from J S S Public School, Bengaluru

Subject :NSO Class : Class 4

Which of these activities will help conserving soil and check soil erosion?

(A) Constructing dams

(B) Stopping overgrazing

(C) Terrace farming

(D) All of these

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Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is D.

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Ayushman Mohapatra from DAV PUBLIC SCHOOL, Bhubaneswar

Subject :NSO Class : Class 7

Consider the following list of materials to answer the question which follows.
I. Liquid oxygen
II. Soap solution
III. Brass
IV. Silver
V. Petrol.
Which one of the following is correct?

A I, III and IV are elements
B II, III and V are mixtures
C III and IV are elements
D III and V are compounds

B

View All Answers (3)

Ans 1:

Kartik Saxena from Mercy Memorial School, Kanpur

Class : Class 7

B

Ans 2:

Ayushman Mohapatra from DAV PUBLIC SCHOOL, Bhubaneswar

Class : Class 7

B

Ans 3:

Shriyam from Chinmaya vidyalaya Bokaro, Bokaro

Class : Class 7

Liquid oxygen is impure so ans is B

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Dishen dharmenra patel from Anand niketan to the satellite , Ahmedabad

Subject :NSO Class : Class 3

Based on the given chart, desert plants most likely compete for ____.

(A) Light

(B) Water

(C) Space

(D) Animals

View All Answers (1)

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is B.

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