National Science Olympiad Forum By SOF Olympiad Trainer

giridhar bhat from Jindal Vidya Mandir, Toranagallu

Subject :NSO Class : Class 1

Which of the following activities can come at the place X?

A Moving things
B Drying clothes
C Irrigating fields
D Cleaning utensils

p;s help.

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SOUMYARAJ ROY from DELHI PUBLIC SCHOOL, Dhanbad

Subject :NSO Class : Class 4

How many meaningful words can be formed from the third, seventh, twelfth and sixteenth letters of the given alphabet series?

ANone
BOne
CTwo
DMore than two

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Kavinkrishnan from Sri Chaitanya school, Tirupur

Subject :NSO Class : Class 6

A 1 m long uniform beam is being balanced as shown in the given figure.

What are the forces X and Y

--------Force X--Force Y
A1 N----------0 N
B2 N----------1 N
C3 N----------3 N
D4 N----------7 N

how to do this sum with steps

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Raghavan Sivaelango from Shraadha Childerns Academy, Chennai

Subject :NSO Class : Class 1

Some features of living things are given in the box.

Which of these features are found only in all living things?

A1, 2 and 3 only
B1 and 3 only
C1, 3 and 4 only
D2 and 4 only

The correct answer should be 1 and 2 only. For eg: Plants are living things and will grow in size and can breathe. The Correct answer given is 2 and 4. Can Plants respond?

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Sarakshi Pani from JHTS, JAMSHEDPUR

Subject :NSO Class : Class 5

P changes into Q state without involving an intermediate R stage. This process is called S. If P is naphthalene ball, then what can be Q, R and S respectively?

ALiquid, solid, evaporation
BGaseous, liquid, melting
CSolid, liquid, condensation
DGaseous, liquid, sublimation

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Ans 1:

Piyush Kumar Pruseth from Sri Aurobindo Integral Education and Research Centre, Rajgangpur

Class : Class 5

D is the answer

Ans 2:

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata

Class : Class 6

It will be d

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zaki from Dunes International School, Mumbai

Subject :NSO Class : Class 4

Which of the following options shows the correct mirror image of the given combination ?

(a)
(b)
(c)
(d)

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Atharv from Lakshdham high school , Mumbai

Subject :NSO Class : Class 5

A group of students have to prepare a school project on food chain. They gathered the given images for the same. What should be the right order for placing them in the food chain?

Aa → b → c → d
Ba → c → b → d
Ca → b ↔ d → c
D

D

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Ans 1:

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata

Class : Class 6

It will be d

Ans 2:

Piyush Kumar Pruseth from Sri Aurobindo Integral Education and Research Centre, Rajgangpur

Class : Class 5

D

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Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee

Subject :NSO Class : Class 6

A fabric swatch was found at a crime scene. It was found to burn with a hair like smell. To identify the criminal from his clothing, the investigating officer took fabric samples from clothing of four suspects. He placed the data collected in the given chart to help him identify the sample taken from the crime scene.

The data suggests that the most likely culprit is _______.

ASuspect Z
BSuspect Y
CSuspect X
DSuspect W

The correct option may be D also. The solution is not self-explanatory

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Ans 1:

Manvi Mundepi from Montfort School Roorkee, Roorkee

Class : Class 7

the answer is d only ,not any other

Ans 2:

Bhabani Prasad from Narayan School, Kolkata

Class : Class 6

Yes the answer is d as silk smells like hair when burnt and it is also smooth.It is not a good absorbent like cotton.

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Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee

Subject :NSO Class : Class 6

Which of the following activities/processes can lead to global warming?
(i) Burning of fuels
(ii) Using mass transport systems
(iii) Using CFCs in refrigerators
(iv) Growing dense vegetations
(v) Increasing use of air conditioners
(vi) Digestion in cattle
(vii) Using electricity carefully

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

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Avinabha from DPS, Kolkata

Subject :NSO Class : Class 2

The curries we eat in our food are cooked using vegetables sold by ______X______ and spices sold by ____Y____. Both vegetables and spices are grown by ____Z____.
Select the option that correctly fills the blanks in the above sentence.

	X	Y	Z
A	Farmer	Grocer	Baker
B	Baker	Tailor	Cobbler
C	Greengrocer	Grocer	Farmer
D	Greengrocer	Baker	Painter

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