National Science Olympiad Forum By SOF Olympiad Trainer

Vartika Agarwal from Phoenix world school, Pune

Subject :NSO Class : Class 6

Match column I with column II and select the correct option from the given codes.

A(i) - (E); (ii) - (B); (iii) - (A); (iv) - (C); (v) - (D)
B(i) - (D); (ii) - (E); (iii) - (B); (iv) - (A); (v) - (C)
C(i) - (E); (ii) - (A); (iii) - (B); (iv) - (C); (v) - (D)
D(i) - (D); (ii) - (A); (iii) - (B); (iv) - (C); (v) - (E)

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Ans 1:

Lakshmi from FPS, Bangalore

Class : Class 10

Ans 2:

Vartika Agarwal from Phoenix world school, Pune

Class : Class 9

Ans 3:

harry potter from hogwarts, hogsmeade

Class : Class 6

Ans 4:

Iba khan from DPS GBN, Noida

Class : Class 6

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yashmit singh from la blossom school, jalandhar

Subject :NSO Class : Class 5

Which of these is the most accurate description of air, based on the pie-chart?

A Two-thirds nitrogen, two-thirds oxygen, and one-tenth other gases
B Three-quarters oxygen and one-third nitrogen and other gases
C One-half nitrogen and one-half oxygen and other gases
D One-fifth oxygen and four-fifths nitrogen and other gases

View All Answers (3)

Ans 1:

Goutham Ram from Lecole' Chempaka International, Trivandrum

Class : Class 5

At least say how much percentage of the different air are there.

Ans 2:

Biju Pappachan from Rkc , Raipur

Class : Class 1

Question was very tricky how am I supposed to understand through a pie chart

Ans 3:

Vihaan Patil from Bombay Scottish School, Mahim Mumbai

Class : Class 6

THE OPTIONS DO NOT MAKE SENSE

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D HARSHINI from ST MARTINS HIGH SCHOOL CHINTAL, HYDERABAD

Subject :NSO Class : Class 9

Among the following cell organelles P, Q, R and S, which is the odd one out?

A S, because the others are membrane bound cell organelles.
B P, because the others are involved in cell secretion.
C R, because the others are involved in protein storage.
D Q, because the others are involved in energy production.

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Ans 1:

Harsh Gupta from AECS Narora, Narora

Class : Class 9

Ans 2:

ICHALKARANJI from dkte, ichalkranji

Class : Class 8

yes your are right

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Snigdha swaminath from Christ nagar higher secondary school , Trivandrum

Subject :NSO Class : Class 6

Take 10 mL of water in 6 test tubes each and add different samples of substances to each test tube as shown in the given figure. Shake the test tubes vigorously for a couple of seconds and leave them undisturbed. In which of these test tubes, sample substances will remain insoluble in water?

A 1, 2 and 3
B 2, 3 and 4
C 3, 4 and 5
D 4, 5 and 6

C is correct

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Ans 1:

Ayuni Pathak from Lotus Valley International school , Noida

Class : Class 6

is washing powder soluble

Ans 2:

RICHA BORAH from K V ANNA NAGAR, CHENNAI

Class : Class 7

Sugar ,salt and washing powder are soluble in water while sand ,chalk powder and saw dust are insoluble in water.

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naman test from DPS Pune, Pune

Subject :NSO Class : Class 6

Using the "conduction tester" on an object it was found that the bulb begins to glow. Is that object a conductor or an insulator? Explain.

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Debarpan Das from Delhi Public School , Durgapur

Subject :NSO Class : Class 5

Find the correct water image of Fig. (X).

A
B
C
D

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Ans 1:

Nishchay Gupta from Cambridge Court World School, Jaipur

Class : Class 6

Ans 2:

Umair Kamal from GEMS MODERN, DUBAI

Class : Class 8

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Swarit from Indian School Wadi kabir, Muscat

Subject :NSO Class : Class 5

Refer to the given relationship based on body coverings and select the option which satisfies the same relationship.

APartridge : Turtle : Rabbit
BEgret : Flamingo : Hedgehog
CPorcupine : Oyster : Lizard
DWhale : Crab : Tortoise

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Ans 1:

Arnav Nandan from ST PETERS COLLEGE AGRA, Agra

Class : Class 9

idk these type of questions because i am not able to understand what animal they are talking

Ans 2:

Nishit Vaity from Euro School Airoli, Navi Mumbai

Class : Class 6

idk

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Aaron Dominic from Ryan International School, Bangalore

Subject :NSO Class : Class 7

In which of the following circuits bulb will glow?

A
B
C
D

The given answer is (a), if the circuit is closed in (a), since the wire has practically zero resistance the electricity will avoid the bulb. what do you think ?

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Ans 1:

Midhuna from ABCD, Banglore

Class : Class 3

IDK

Ans 2:

Kashvi Rawat from Gear Innovative International School, Bengaluru

Class : Class 3

Wouldn't 'A' be a short circuit?

Ans 3:

Riddhik Bose from Vibgyor High, Airoli, Mumbai

Class : Class 4

Ans 4:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore

Class : Class 8

I don't think A will be a short circuit, as the current is flowing through an electric appliance (the bulb in this case), while a short circuit is when positive and negative terminals are connected directly. But I think that A is the correct answer as in all the other circuits, the circuit is open.

Ans 5:

Arshia Kochhar from Delhi Public School Dwarka , New Delhi, Dwarka

Class : Class 8

so confusingggg

Ans 6:

Adwitiya Roy from South Point High School, KOLKATA

Class : Class 8

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Swarit from Indian School Wadi kabir, Muscat

Subject :NSO Class : Class 5

The diagram below represents part of the digestive system of a boy. X, Y and Z represent different substances that are being absorbed into the bloodstream at different parts as shown below.

Based on the diagram above which of the following best represents organ Q and substances X, Y and Z? Substance Substance Substance

	Organ Q	Substance X	Substance Y	Substance Z
A	Large intestine	Water	Digested	Undigested food
B	Large intestine	Digested food	Undigested food	Water
C	Anus	Water	Digested food	Undigested food
D	Anus	Digested food	Undigested food	Water

BAD QUESTION !!!!!!!!!!!!!!!!!!!!!!!

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Ans 1:

Swarit from Indian School Wadi kabir, Muscat

Class : Class 6

BAD QUESTION!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I AM ANGRY WITH U

Ans 2:

Debarpan Das from Delhi Public School , Durgapur

Class : Class 9

Ans 3:

Subhanshi Jha from DPS Vsant Kunj, New Delhi

Class : Class 7

Ans 4:

Aaditya Malhotra from Isaac Newton Global School, Mumbai

Class : Class 3

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ALICE from Delhi Public School, UDAIPUR

Subject :NSO Class : Class 3

A group of students completed a float or sink experiment. They put six objects into a bucket of water. The objects were made of three different materials : clay (clay ball and clay boat), plastic (plastic cup and plastic duck) and steel (steel nail and steel spoon). Which material always sank in this experiment ?

AClay
BPlastic
CSteel
DBoth A and C

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Ans 1:

eekagrah bansal from Springdales dubai, dubai

Class : Class 6

clay boat can float on water so answer should be C (steel).

Ans 2:

Ananya D from Sacred Heart School, Thane

Class : Class 8

Ans 3:

Kashika Goel from DPS Noida, Noida

Class : Class 7

clay will always sink in water whether it is any clay pot or clay boat etc

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