National Science Olympiad Forum By SOF Olympiad Trainer

Harrihara Sudan V from Swargarani, Bengaluru

Subject :NSO Class : Class 4

Study the given classification chart of animals carefully and identify the animals (a-d).

	a	b	c	d
A	Penguin	Crocodile	Sparrow	Cow
B	Shark	Frog	Snake	Dog
C	Frog	Tadpole	Lizard	Cat
D	Whale	Frog	Pigeon	Horse

Ans 1:

vighneshwar from study hall, Lucknow

Class : Class 5

B

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Advait Malwade from Sssdp, Pune

Subject :NSO Class : Class 7

The given figure shows a setup at the start of an experiment (X) and after a few days (Y). The change observed in setup Y is due to

A Upward movement of food getting blocked
B Downward movement of food getting blocked
C Upward movement of water getting blocked
D Downward movement of water getting blocked.

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Yashashree Somdatta Kulkarni from Delhi Public School, Nashik

Subject :NSO Class : Class 5

Which of these would not be an effect of excessive rainfall?

A Destruction of crops leading to shortage of food.
B Water-borne diseases like jaundice and cholera.
C Drought resulting in famine.
D Communication and transportation gets affected.

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Ans 1:

Cheshika batra from Our lady of Fatima convent school, Patiala

Class : Class 5

A and B

Ans 2:

Anjisha Chakraborty from Mount Litera Zee School, Jabalpur

Class : Class 5

Answer C as drought will not happen if there is excessive rainfall and the question is which will NOT happen

Ans 3:

Cheshika batra from Our lady of Fatima convent school, Patiala

Class : Class 5

A

Ans 4:

Cheshika batra from Our lady of Fatima convent school, Patiala

Class : Class 5

A

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Brinda from DPS Noida, Noida

Subject :NSO Class : Class 5

Which property of air makes drinking through straw possible?

A Air has mass.
B Air occupies space.
C Air exerts pressure.
D Air can be compressed.

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Ans 1:

samanvay sinha from School of India, Bangalore, bengaluru

Class : Class 5

Ans 2:

Cheshika batra from Our lady of Fatima convent school, Patiala

Class : Class 5

C

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Chandreyee from BGKV, Kolkata

Subject :NSO Class : Class 10

A wire of resistance 4 Ω is used to wind a coil of radius 7 cm. The wire has a diameter of 1.4 mm and the specific resistance of its material is 2 × 10^-7 Ω m. The number of turns in the coil is

A 50
B 40
C 60
D 70

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Shayan Bari from Kendriya Vidyalaya, Katihar

Subject :NSO Class : Class 6

X and Y are two 12 years old girls having physically active and sedentary life styles respectively. Considering their lifestyles, select a suitable lunch meal for each of them from the given boxes.

AX-(iii), Y-(i)
BX-(ii), Y-(i)
CX-(ii), Y-(iv)
DX-(i), Y-(iv)

Where are the lifestyles of X and Y?

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Ans 1:

Dushyant Singh from Shree Ram Centenial School, Indore

Class : Class 9

Ans 2:

Doofal from Sanskriti School, Delhi

Class : Class 6

a

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Shivangi singh from Dps greater Noida, Greater Noida

Subject :NSO Class : Class 3

Vedant wants to heat object Q but without putting it on the stove directly. He set-up an experiment as shown here. The object P should be made of which of the following materials so that object Q can be heated?

AWood
BRubber
CIron
DPlastic

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Ans 1:

ANSHUL GAJJAR from PODAR INTERNATIONAL SCHOOL, AHMEDABAD

Class : Class 3

C

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Sounak halder from Kendriya Vidyalaya Cossipore, kolkata

Subject :NSO Class : Class 8

Which of the following statements is incorrect?

A The lithosphere floats on the mantle.
B Earthquakes occur along the boundaries of tectonic plates.
C The tectonic plates meet at fault lines.
D Earth’s crust is made up of molten rocks.

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Ans 1:

Advika Singh from The Tribhuvan School, Patna

Class : Class 8

The fudge?!

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Keruphagaran from Hindustan international school, Chennai

Subject :NSO Class : Class 4

Sonam, Priya, Pallavi, Kavya and Tina are comparing what flavours of Ice-cream they like. The clues are given here
∗ Sonam, Pallavi and Tina are the only ones who likes Butterscotch Ice-cream.
∗ Priya is the only one who dislikes Chocolate Ice-cream.
∗ Everyone except Pallavi likes Vanilla Ice-cream.
∗ The only child who does not like Strawberry Ice-cream is Sonam.Who likes the most flavours of Ice-cream?

A Sonam
B Pallavi
C Kavya
D Tina

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Ans 1:

Shubham Majhi from Sri Chaitanya Techno School, Bangalore

Class : Class 5

tina

Ans 2:

vighneshwar from study hall, Lucknow

Class : Class 5

OPTION D

Ans 3:

Biradar Mahendra from Jai Hind Public school Udgir , Udgir

Class : Class 4

A

Ans 4:

Ashwak from Cambridge, Jalandhar

Class : Class 9

Biradar what is your final answer A or D ?

Ans 5:

Biradar Mahendra from Jai Hind Public school Udgir , Udgir

Class : Class 4

D

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Soham from Vibgyor , Pune

Subject :NSO Class : Class 4

Which one of the following pie-charts represents the fraction of Earth that is NOT covered by water? The shaded part represents the fraction.

A
B
C
D