National Science Olympiad Forum By SOF Olympiad Trainer

Parth Kalumali from Dav Public School Aundh Pune, INDIA

Subject :NSO Class : Class 3

The given graph provides information about noise level in different situations. Which of the following scenarios can create a noise level as indicated on the graph by the letter X? A A plane taking off B A dog barking C Honking of a car D Metro train moving on tracks

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Parth Kalumali from Dav Public School Aundh Pune, INDIA

Subject :NSO Class : Class 3

Amit's father said, "stay at home as son of my son-in-law will come to our home to meet us". Amit will meet with his _____. ACousin BUncle CNephew DBrother

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Aadi Turlapati from Glendale International school, Hyderabad

Subject :NSO Class : Class 5

Gopal compared the mass of three fruits using two weighing balance.

Based on the observations, which of the following statements is Not possible to tell?

AThe orange is lighter than the apple.
BThe apple has the same mass as the pear.
CThe orange is heavier than the pear.
DThe apple has the same volume as the orange.

D is incorrect answer

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Ans 1:

Archit Raj from Little ANGELS school , Munger

Class : Class 5

D

Ans 2:

Alay Shah from Euro School, Thane

Class : Class 5

Ans 3:

Joe Bipin from National Public School Agra, Bangalore

Class : Class 10

Ans 4:

AREEN from BOLTON, HYDERABAD

Class : Class 6

Ans is A because the side in which orange is there is down and the apple's side is up.

Ans 5:

Shuvangi Das from Vivekananda mission school, haldia

Class : Class 9

I agree your comments AREEN . They should have options suitable to answer. Thanks for agreeing my decision

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Kushal from Chirec, Hyderabad

Subject :NSO Class : Class 6

Which of the following actions will cause a magnet to lose its magnetic properties?
(i) Heating
(ii) Placing inside an insulator
(iii) Hammering
(iv) Dropping it from some height

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

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Ans 1:

Kushal from Chirec, Hyderabad

Class : Class 7

the answer is d

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Kushal from Chirec, Hyderabad

Subject :NSO Class : Class 6

Study the following information carefully and answer the question :
(i) Six children B, D, C, M, J and K are split into two groups of three each and are made to stand in two rows in such a way that a child in one row is exactly facing a child in the other row.
(ii) M is not at the end of any row and is to the right of J, who is facing C. K is to the left of D, who is facing M.
Who is to the immediate left of B?

AM
BJ
CC
DData inadequate

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Ans 1:

Dushyant Singh from Shree Ram Centenial School, Indore

Class : Class 9

Ans 2:

shubham kundu from dps, bangalore

Class : Class 8

Ans 3:

Shreyansh Gupta from MVN, faridabad

Class : Class 7

ans should be D instead of B

Ans 4:

malhar thorve from city internqtional school, satara road, pune

Class : Class 7

i also think ans should be d

Ans 5:

Kushagra Chaturvedi from Podar International School Chinchwad, Pune

Class : Class 7

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student from school, city

Subject :NSO Class : Class 6

Study the food web shown below.

How is organism P in the food web different from the organisms Q, R, S and T?

AIt causes decomposition.
BIt feeds on plants.
CIt feeds on animals.
DIt can photosynthesize.

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Tanishka Pasricha from Sheiling House School, Kanpur

Subject :NSO Class : Class 5

The coloured structures present inside the sepals of a flower are known as _____.

APollens
BBuds
CLeaves
DPetals

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Ans 1:

Debarpan Das from Delhi Public School , Durgapur

Class : Class 9

Ans 2:

Ivan Tyagi from Chirec International School , Hyderabad

Class : Class 8

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Ishaan Singh from BBPS, Gurugram

Subject :NSO Class : Class 3

Amit's father said, "stay at home as son of my son-in-law will come to our home to meet us". Amit will meet with his _____.

ACousin
BUncle
CNephew
DBrother

The correct answer is C

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Ans 1:

Parth Kalumali from Dav Public School Aundh Pune, INDIA

Class : Class 7

C IS THE CORRECT ANSWER

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Ishanvi B Nair from DPS Noida, Noida

Subject :NSO Class : Class 1

Refer to the given word grid and answer the following questions.

Find out the object hidden in the grid which is used for safety in both skating and cycling.
A Helmet
B Knee guard
C Floats
D Both (A) and (B)

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Ans 1:

Iksha from Vibgyorhigh, Pune

Class : Class 1

Ans 2:

Priyanshu Das from Abu Dhabi Indian School, Abu Dhabi

Class : Class 6

b

Ans 3:

KRISHNARGHYA PRAMANIK from DELHI PUBLIC SCHOOL, MEGACITY, KOLKATA WEST BENGAL

Class : Class 5

Ans 4:

KRISHNARGHYA PRAMANIK from DELHI PUBLIC SCHOOL, MEGACITY, KOLKATA WEST BENGAL

Class : Class 5

Ans 5:

Priyanshu Das from Abu Dhabi Indian School, Abu Dhabi

Class : Class 6

c

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Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai

Subject :NSO Class : Class 4

Refer the given figure showing some aquatic plants.
Select the correct option regarding the labelled plants 'L', 'M' and 'N'.

(a) Plant 'L' - Their leaves are narrow and thin so that they can bend in flowing water.
(b) Plant 'N' - The stomata are on the top of the leaf surface so that the water does not block them.
(c) Plant 'M' - Their leaves are spongy as they have air in them.
(d) All of these.

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Ans 1:

Shaurya Suryawanshi from The Orbis school, Pune

Class : Class 7

It's 'D'

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