National Science Olympiad Forum By SOF Olympiad Trainer

Kanishk Mukherjee from BDM International, Kolkata

Subject :NSO Class : Class 6

Look at the Venn diagram. Which of the following objects described below are most likely to be I, II and III? Choose the correct option.

	I	II	III
A	Oiled paper	Air	Cellophane paper
B	Glass	Frosted glass	Wood
C	Wax paper	Clean water	Diamond
D	Mirror	Diamond	Lamp

Ans 1: (Master Answer)

from ,

Class :

B

Transparent objects allow the light to pass through it completely , while the translucent passes the light partially .

An object is categorised as opaque if it completely blocks the light falling on it.

Hence, B is the correct option.

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Pratheek from Null, Null

Subject :NSO Class : Class 6

Soham was given a mixture of camphor, iron filings, sawdust and salt.
Which of the following represents the correct sequence of steps to separate all the components of this mixture?

A Winnowing, filtration, separating funnel and magnetic separation
B Sedimentation and decantation, heating, filtration and evaporation
C Magnetic separation, heating, filtration and evaporation
D Sedimentation and decantation, handpicking, filtration and evaporation

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harry potter from Hogwarts school of witchcraft and wizardry , london

Subject :NSO Class : Class 5

Refer to the given flow chart and select the incorrect option.

APart P will help a student think, learn and recall her lessons.
BPart Q will help a child to learn the art of riding a bicycle.
CPart R controls our breathing and heartbeat even when we are asleep.
DPart Q will help a person retract his hand when touched by a hot object.

now this is wron' 'cause i, option D it is written part Q but in the solution it's written par' Q plz correc' thi'

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Ans 1:

harry potter from Hogwarts school of witchcraft and wizardry , london

Class : Class 5

wrong!!!!!!! BLUNDER BY SOF!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 2:

Ridhan from SFS janakpuri, New Delhi

Class : Class 5

wrong question

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Shubhi Vats from Kendriya Vidyalaya Ordnance Factory Chanda, Bhadrawati

Subject :NSO Class : Class 7

Refer to the given figure of human digestive system. What is X here and what is its function?

A Small intestine - Absorbs nutrients from digested food
B Stomach - Breaks down food using acids and enzymes
C Appendix - Has no specific function in the body
D Rectum - Temporary storage of faeces before being expelled out of the body.

i don't know the function of appendix.

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Ans 1:

Arav saraf from lotus valley international school, NOIDA

Class : Class 7

not available to identify

Ans 2:

Rithvik from BVM Global, Chennai

Class : Class 9

exactly Arav . they should give it clearly. its to small. and they should mention in synopsis about various parts...

Ans 3:

ABCDE from admin, Noida

Class : Class 6

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chittaranjan kar from MLZS, Jaipur

Subject :NSO Class : Class 6

Which of the following statements are correct?
(i) The colour of light will affect the characteristics of the shadow.
(ii) If light is allowed to pass through a piece of muslin cloth, a lighter shadow will be formed.
(iii) The magnetic properties are induced into an iron bar till the magnet is kept near it.
(iv) Bulb has only one terminal to connect the filament with the circuit.

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

Color of shadow will change with color of light. So, (i) is also correct.

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Ans 1:

Rishit goyal from St Peter's College, Agra

Class : Class 8

Ans 2: (Master Answer)

from ,

Class :

C

Colour of an object doesn' t affect the colour of its shadow .It is faint and dark depending upon the amount light falling on the screen.

The iron rod behaves like a magnet so long as it is kept near the magnet. When the magnet is removed, the iron rod loses its magnetic property.

An electric bulb has two two terminals.

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Sai shankar S from geethanjali vidyalaya, Bangalore

Subject :NSO Class : Class 7

Read the given flow chart and identify the animals,W, X, Y and Z.

	W	X	Y	Z
A	Asian elephant	Penguin	Kangaroo rat	Red-eyed frog
B	Polar bear	Siberian crane	Camel	Toucan
C	Fennec	Arctic tern	Giant panda	Orangutan
D	Jaguar	Swallow	Ground squirrel	Sloth

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k tagore from montessori school, KURNOOL

Subject :NSO Class : Class 3

dear sir i completed my level 2 model papers preparation, how can i get again model papers to practice

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Ans 1: (Master Answer)

from ,

Class :

Please visit our website: www.mtg.in

Or reach us on

Telephone

0124-6601200

Email
info@mtg.in

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Amrik Pal from Kendriya Vidyalaya DRDO, Bangalore

Subject :NSO Class : Class 6

Class teacher gave four different samples of fibres to four students. Ria has fibre H, which is obtained from plant that grows best in alluvial soil in warm and humid climates. Fibre I given to Sumit gives smell of burning hair on being burnt and has ability to trap air and heat, while fibre J given to Kanika, is a fibre obtained from an insect. Fibre K given to Rahul burns with smell of burning plastic. Identify the fibres H, I, J and K and select the correct option regarding them.

AFibre H is the cheapest vegetable fibre and is also known as golden fibre.
BFibre I is obtained from passion vine and can be worn both in summers and winters.
CFibre J does not absorb water at all hence is used in making raincoats.
DFabric made of fibre K can absorb sweat, thus is comfortable to wear in hot and humid weather.

A

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Ans 1:

Ayush singh from New rainbow public School, Ghaziabad

Class : Class 6

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Amrik Pal from Kendriya Vidyalaya DRDO, Bangalore

Subject :NSO Class : Class 6

Given images show various steps in processing of cotton fibre into fabric. Arrange these steps in correct sequence.

A(iv) → (iii) → (ii) → (i) → (v)
B(iv) → (ii) → (v) → (iii) → (i)
C(iv) → (ii) → (iii) → (v) → (i)
D(iv) → (i) → (ii) → (v) → (iii)

D

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Ans 1:

Amrik Pal from Kendriya Vidyalaya DRDO, Bangalore

Class : Class 7

D

Ans 2:

Namrith Siddabathula from Birla Open Minds School, Hyderabad

Class : Class 7

The photos are not clear!!!

Ans 3:

Subhang Deep Sahu from Narayana CO Kadugodi Bangalore, Bangalore

Class : Class 8

the answer is also incorrect

Ans 4:

Ishaan Singhal from CCWS, Jaipur

Class : Class 5

Photos are not clear!!!!

Ans 5:

Kanishk Mukherjee from BDM International, Kolkata

Class : Class 6

Ans 6:

Harshil from Pawar Public School, PUNE

Class : Class 6

yes, the photos are not clear !!!

Ans 7:

Mayank Das from Army Public School Bolaram, Hyderabad

Class : Class 2

photo not visable answer not correct we understand broo

Ans 8:

Can I get Rank 35 darryl from Global Indian international school, Brawl stars

Class : Class 8

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Amrik Pal from Kendriya Vidyalaya DRDO, Bangalore

Subject :NSO Class : Class 6

Study the given flow chart and select the correct option.

	P	Q	R	S	T
A	Ginger,Banana	Hibiscus,Sweet pea	Rice,Gourd	Mango,Banyan	Mustard,Money Plant
B	Tulsi,Bamboo	Coriander,Lemon	Turnip,Carrot	Neem,Teak	Black Pepper,Candytuft
C	Wheat,Rice	Beetroot,Radish	Onion,Cucumber	Sugarcane,Coconut	Maize,Chickpea
D	Mint,Fennel	Rose,Cotton	Grapevine,Pumpkin	Teak, Pine	Pea,Betel

D

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Vikram from AVM, Mumbai

Class : Class 5

Mistake - grapevine is a climber not creeper

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