National Science Olympiad Forum By SOF Olympiad Trainer

Ravinder Kumar from a to z, Rewari

Subject :NSO Class : Class 3

Ravi took 100 gms each of three different soils P, Q and R in three identical troughs each with a hole at the base. He poured water (20 mL) over these three soils and collected the water dripping from the trough holes in similar graduated beakers X, Y and Z respectively for soils P, Q and R.
His readings were as follows:

Now, select the soil that is most suitable for pottery.

A P
B R
C Q
D None of these

the answer should be 'c' as trough q absorb least water.

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Ans 1:

MAYANK from A.P.S, REWARI

Class : Class 3

Ans 2:

Ashmi Narkar from Shishukunj International School , Indore

Class : Class 3

Ans 3:

Shreyash anand from QACS, BHARUCH

Class : Class 6

jjjjjjj

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Ravinder Kumar from a to z, Rewari

Subject :NSO Class : Class 3

Select the incorrect option regarding the vehicle shown here.

A It is a special means of transport.
B It carries posts, letters, parcels, etc. from one place to another.
C It carries policemen and criminals.
D None of these

Your answer is wrong.

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Ans 1:

bhaskar chaudhary from Shri Mahavir Jain English School,Kalyan(W), Kalyan(W)

Class : Class 2

read question properly in question.

Ans 2:

Archit Borkar from Whitefield Global School, Bengaluru

Class : Class 3

answer B is correct. they asked about incorrect option regarding police van.

Ans 3:

Kavitha Sun from sanjivani international school, Mumbai

Class : Class 2

Correct answer is c not b because police man's car carry crimnals and police mans not letters,messages,parcel etc.

Ans 4:

Riddhiman Bose from Don Bosco School, Kolkata

Class : Class 4

this will be option C

Ans 5:

Dhaivat Bhatti from KES SMVM School , MUMBAI

Class : Class 4

Correct answer is C not B

Ans 6:

Arohan chatterjee from Bharatiya vidya bhavan salt lake, Kolkata

Class : Class 3

It is b not c because it is showing INCORRECT OPTION

Ans 7:

Arohan chatterjee from Bharatiya vidya bhavan salt lake, Kolkata

Class : Class 3

It will be b because it is shown INCORRECT OPTION

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JAYANT KUMAR from EURO INTERNATIONAL SCHOOL,SIKAR(RAJ.), SIKAR

Subject :NSO Class : Class 8

what is the another name or scientific name of gold?

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Ans 1:

Sneha Bhargava from Blue Bells Group of Schools, Jhansi

Class : Class 8

Aurum (Au) is the scientific name of gold.

Ans 2:

thechampiondaksh from K R Mangalam World School, New Delhi

Class : Class 8

Au is the scientific name of gold

Ans 3:

Barath from Psbb millennium, Coimbatore

Class : Class 8

Aurum (au) is the scientific name of gold

Ans 4:

thechampiondaksh from K R Mangalam World School, New Delhi

Class : Class 8

Au is the scientific name of gold

Ans 5:

Surabhee Thakur from Sri Chaitanya, Hyderabad

Class : Class 9

Gold is also known as Aurum.

Ans 6:

Peeyush Bangar from bvb Vidyashram , jaipur

Class : Class 8

It's Latin name is aurum and symbol is au

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Aryan Sirohi from Mount LItera Zee School, Bangalore

Subject :NSO Class : Class 10

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Ans 1:

Daivik Goel from Delhi public school , Vadodara

Class : Class 4

My God!!!!! What the hell is this!!!!!!!!! Are you seriously Maaaaaaaaaaaaaaaaddd?

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Aditya Gururaj from Headstart, Bengaluru

Subject :NSO Class : Class 5

Study the given flow chart and select the correct option regarding it.

A d-Humming bird, e-Spear-shaped
B e-Cracker, f-Hooked
C f-Cracker, g-Swan
D d-Peacock, g-Hawk

tricky

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Ans 1:

gayathri from NPS, Bengaluru

Class : Class 3

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Aryan Sirohi from Mount LItera Zee School, Bangalore

Subject :NSO Class : Class 5

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Aryan Sirohi from Mount LItera Zee School, Bangalore

Subject :NSO Class : Class 5

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Md.Fahaam from Takshasila Public School, Hyderabad

Subject :NSO Class : Class 7

Which colour has the highest wavelength and which colour has the lowest? a. Indigo, Voilet b. Orange, Red c. Blue, Yellow d. Red, Voilet

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Ans 1:

akshaya from vidya bhavan high school, Pune

Class : Class 8

Violet has the highest wavelength and red has the lowest wavelength

Ans 2:

Md.Fahaam from Takshasila Public School, Hyderabad

Class : Class 7

Correct answer

Ans 3:

abhinav from fitjee world school, Hyderabad

Class : Class 8

Option d

Ans 4:

Md.Fahaam from Takshasila Public School, Hyderabad

Class : Class 7

All wrong. How can a colour have the highest and also the lowest wavelength? ??

Ans 5:

akshaya from vidya bhavan high school, Pune

Class : Class 8

Violet has the highest wavelength and red has the lowest wavelength

Ans 6:

Md.Fahaam from Takshasila Public School, Hyderabad

Class : Class 7

All wrong. How can a colour have the highest and also the lowest wavelength? ??

Ans 7:

ACHAL JHAWAR from DELHI PUBLIC SCHOOL , INDORE

Class : Class 8

red

Ans 8:

ACHAL JHAWAR from DELHI PUBLIC SCHOOL , INDORE

Class : Class 8

red

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Kishan H from KV1 JALHALLY WEST , Bengaluru

Subject :NSO Class : Class 3

Can anyone tell what is the answer for question no.4 of SET-A NSO 2017. Key answer published as option-D. But I think it should be option-C.

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Ans 1:

Aditi Mahanti from DPS North Kolkata, Kolkata

Class : Class 3

it is only option c

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PRANEEL PRIYASH PANDA from AECS NARORA, BULANDSHAHR

Subject :NSO Class : Class 6

Read the following statements.
(i) Air dissolved in water cannot be removed from it.
(ii) Density of air decreases with increasing altitude.
(iii) Air is an element that surrounds the Earth and makes it hospitable for living organisms.
(iv) Air helps in pollination of several flowers and in the dispersal of seeds.
Which of the above statements are correct?

A (i) and (ii) only
B (ii) and (iv) only
C (i) and (iii) only
D (iii) and (iv) only

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Ans 1:

Prachi Chauhan from ISG International , Muscat

Class : Class 6

Ans 2:

Arsheya jain from VSPK Interational School Delhi, Delhi

Class : Class 6

I think option iii is not correct because they have written air not atmosphere . If I am correct thats why its wrong but also I think that it should be correct .But if its not I am not complaining because its air not atmosphere .what do you think let me know in posts .

Ans 3:

Naman from Svm, Nalasopara

Class : Class 6

from opt only 4 is correct RIGHT

Ans 4:

Arsheya jain from VSPK Interational School Delhi, Delhi

Class : Class 6

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Ans 5:

HARSHAL KUTE from cambridge school buldhana, Buldhana

Class : Class 6

But option [D] is too correct. The earth is surrounded by air which make it hospitable for living organism.

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