National Science Olympiad Forum By SOF Olympiad Trainer

Subrata nayek from CBSC, ARAMBAGH

Subject :NSO Class : Class 6

Read the given statements and select the correct option.
Statement 1 - We should use jute bags instead of plastic bags for carrying goods.
Statement 2 - Jute bags are cheaper than plastic bags.

ABoth statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
BBoth statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
CStatement 1 is true and statement 2 is false.
DBoth statements 1 and 2 are false.

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Ans 1:

Vivaan Kohli from Greenwood High International School, Bangalore

Class : Class 7

Answer should be option A as Statement 1 is correct. Statement 2 is also correct as jute bags are cheaper than plastic bags. Statement 2 is the correct explanation of Statement 1.

Ans 2:

Dhrishaj from Kendriya Vidyalay, IISc, Bangalore

Class : Class 6

No actually Jute bags are costlier

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Souradeep Saha from DON BOSCO SCHOOL PARK CIRCUS, Kolkata

Subject :NSO Class : Class 7

The given picture shows a camel with its different parts labelled as P, Q, R, S, T and U.

Which of the following statements is incorrect regarding its adaptations?
(i) Q is slit-like and has flap to prevent the entry of sand.
(ii) R is leathery for chewing thorny plants.
(iii) T is used for storing water.
(iv) S is sticky and webbed to prevent it from sinking into sand.

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

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Spandan Trivedi from D.A.V. International School, Ahmedabad

Subject :NSO Class : Class 8

In the experiment, if A is plated with copper, the anode would be

A A
B B
C C
D Data insufficient

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Ans 1:

Soumik from Dps bhilai, Bhilai

Class : Class 6

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Abhijeet Kumar Jha from New Era Senior Secondary School, Nizampura, Vadodara

Subject :NSO Class : Class 5

Refer to the given flow chart.

Identify W, X, Y and Z and select the correct statement regarding them.

ARed Fort is made of W.
BX typically breaks into flat thin layers and is used in making cement.
CY is porous and light weight rock.
DZ is formed from a type of sedimentary rock and found in different colours.

I think it is C.ð¶ðµð¼ðº YOYOYO

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Ans 1:

aaa from Euro International School , pune

Class : Class 5

Even in the question Z is marked as metamorphic

Ans 2:

Rishik De Sarkar from Delhi Public School Gurgaon, Gurgaon

Class : Class 7

Z is Metamorphic :(

Ans 3:

Aadi from Delhi Public School , golaghat

Class : Class 8

Ans 4:

shaun joel dasari from subs, chennai

Class : Class 4

yes it is

Ans 5:

aaa from Euro International School , pune

Class : Class 5

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Abhijeet Kumar Jha from New Era Senior Secondary School, Nizampura, Vadodara

Subject :NSO Class : Class 5

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Ans 1:

Inez from Vibgyor High Airoli, bangalore

Class : Class 5

Why have they put SST question in a science paper?

Ans 2:

Bubui from ABCD, Bangalore

Class : Class 5

Ans 3:

Ananya Ojha from Apeejay School , Kharghar

Class : Class 6

Bc this is Olympiad here it happens like this only

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Abhijeet Kumar Jha from New Era Senior Secondary School, Nizampura, Vadodara

Subject :NSO Class : Class 5

In the given figures, X, Y and Z represent three different states of matter.

Select the correct option regarding X, Y and Z.

AX is a liquid while Z is a gas.
BY is a solid while X is a liquid.
CX and Y are solids while Z is a gas.
DY is a gas while Z is a solid.

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Ans 1:

Aharshi Kauri from Bishnupur High School, Bishnupur Bankura

Class : Class 7

D

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Abhijeet Kumar Jha from New Era Senior Secondary School, Nizampura, Vadodara

Subject :NSO Class : Class 5

Which of the following statements is/are correct?
(i) By migrating, Arctic tern sees two summers each year.
(ii) For breeding, Salmon migrates from sea to fresh water whereas eel migrates from fresh water to sea.
(iii) Humpback whales migrate from Antarctica to tropical waters of Australia for breeding.

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

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Ans 1:

Arnav Raj Sharma from The gulibilium school, Gurgaon

Class : Class 9

give slution

Ans 2:

Ananya Ojha from Apeejay School , Kharghar

Class : Class 6

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Abhijeet Kumar Jha from New Era Senior Secondary School, Nizampura, Vadodara

Subject :NSO Class : Class 5

Read the given statements and correct them by replacing the italicised words with the correct option.
(i) Iris is the transparent layer that covers the front of the eye.
(ii) Inner ear is a thin membrane like structure that vibrates on receiving sound.

	(i)	(ii)
A	Cornea	Eardrum
B	Pupil	Middle ear
C	Lens	Eardrum
D	Pupil	Outer ear

I think the answer is A YOYOYO

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Ans 1:

spj2011 from DB, Chennai

Class : Class 5

Could you please italicise those words?

Ans 2:

Ananya Ojha from Apeejay School , Kharghar

Class : Class 6

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Abhijeet Kumar Jha from New Era Senior Secondary School, Nizampura, Vadodara

Subject :NSO Class : Class 5

Some letters are given which are numbered as 1, 2, 3, 4, 5 and 6.
Find the combination of numbers so that letters are arranged accordingly to form a meaningful word.

A4, 1, 3, 5, 2, 6
B4, 1, 6, 3, 2, 5
C5, 2, 3, 1, 6, 4
D5, 6, 4, 1, 3, 2

I think the answer is B

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Ans 1:

Ananya Ojha from Apeejay School , Kharghar

Class : Class 6

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ARYAN DAS from LOKHANDWALA FOUNDATION SCHOOL, MUMBAI

Subject :NSO Class : Class 5

The given table shows solubility of three substances. The following steps were carried out to obtain Y from the mixture of substances X, Y and Z.
(i) Filtration
(ii) Evaporation to dryness
(iii) Addition of water

Select the correct order of steps to obtain Y.

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

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Ans 1:

Adway Jha from DPS Whitefield, Bangalore

Class : Class 7

Ans 2:

Hitanshi Behera from Loyola School , Bhubaneswar

Class : Class 4

oye balle balle dhe shava shava, balle balle dhe shava shava, pio pio re kava kava, gana khatham hua

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