National Science Olympiad Forum By SOF Olympiad Trainer

Araddhya tibrewall from Oakridge , Hyderabad

Subject :NSO Class : Class 5

Which of the following options will complete the pattern in Fig.(X)?

A

B

C

D

I think the answer is D

Ans 1:

shaurya from St Gregorios High school, Mumbai

Class : Class 5

D

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Vidhya from Chettinad Vidyashram, Chennai

Subject :NSO Class : Class 7

Given figures show different types of teeth.

In absence of which of these teeth, soft or liquid food is preferred for eating?

A W and Z
B X and Y
C Y and Z
D X and Z.

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is C.

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Yashu from BVN, New Delhi

Subject :NSO Class : Class 7

Hot milk is poured into four bowls as shown in figure. In which bowl the temperature of milk will drop at fastest rate?

A
B
C
D

I am unable to understand. please explain

Ans 1:

Aryan Raju from Deens Academy, Bengaluru

Class : Class 9

Thin Metal bowl as its conductivity will be most and the thickness is less.

Ans 2:

Meghana from School, Bangalore

Class : Class 7

Ans 3:

Sharanya from DAV HAL Public school, Amethi

Class : Class 7

Ans 4:

jay from FAIPS, india

Class : Class 7

Ans 5:

ami.kanhai@gmail.com from NIRMAN HIGH SCHOOL, Ahmedabad

Class : Class 7

the metal actually absorbs and releases the heat to the surroundings because it is a good conductor of heat.

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Manish from kohinoor, Mumbai

Subject :NSO Class : Class 5

If an earthquake occurs, what should you do?

A If you are indoors, stay in and get under a desk or a table.
B If you are outdoors, stay away from trees and buildings.
C If you are on a beach, leave the place and find high ground.
D All of the above.

Is option (A) RIGHT?

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Ans 1:

Shuvangi Das from Vivekananda mission school, haldia

Class : Class 9

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Aarush from Podar, Mumbai

Subject :NSO Class : Class 4

Which of the following activities is/are useful for the environment?

(i) Composting leaves

(ii) Recycling glass and paper products

(iii) Fertilizing a lawn garden every week

(A) (iii) only

(B) (i) & (ii)

(C) (ii) & (iii)

(D) (ii) only.
please tell the answer

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Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is B.

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Aryan Raju from Deens Academy, Bengaluru

Subject :NSO Class : Class 7

Low atmospheric pressure exists on the earth in which of the following latitudes?

A At the equator only
B At 30° N and S
C At the poles
D At the equator and at 60° N and S.

apart from equator low pressure persists in sub-polar low pressure belt found at 60 degree north and south.

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Ans 1:

Kuldeep Battula from Deens Academy, Bengaluru

Class : Class 7

The answer is not a because the equator has a low pressure because the sun heats up the air and the hot air rises thus creating a low pressure on the land. It also exists in the 60 degree latitude the sub - polar low pressure belt because compared to the polar winds the winds blowing from the equator are relatively hotter than the polar winds , thus they force the winds to rise up creating a low pressure so the correct answer is option d.

Ans 2:

BHAVESH PATRA from MOTHERS PUBLIC SCHOOL, BHUBANESWAR

Class : Class 5

Ans 3:

Aditya kumar from Sapphire International School, Noida

Class : Class 8

its "d"

Ans 4:

BHAVESH PATRA from MOTHERS PUBLIC SCHOOL, BHUBANESWAR

Class : Class 5

option D is ithe correct answer

Ans 5:

Sahi Gupta from kothari international school, Ghaziabad

Class : Class 7

a

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Aryan Raju from Deens Academy, Bengaluru

Subject :NSO Class : Class 7

Read the given statements and select the correct answer.
Statement 1 : The distance x at which a car can be stopped by applying brakes depends on the initial velocity.
Statement 2 : Mass of the car has no role to play.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true and statement 2 is false.
D Both statements 1 and 2 are false.

momentum plays a role and it involves mass.

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Ans 1:

Aditya kumar from Sapphire International School, Noida

Class : Class 8

Its "b" because mass has a role to play

Ans 2:

kaithabjeetsingh@gmail.com from the shri ram school aravali, Gurgaon

Class : Class 8

it can be d because both depend on the amount of retardation

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Subroto Bhowmik from Mothers International School, New Delhi

Subject :NSO Class : Class 8

Which of the following adaptations of camel are not meant for tolerating heat and water scarcity of deserts?
(i) Long legs and padded wide feet.
(ii) Brown body colour.
(iii) Long eyelashes.
(iv) Nostrils with flaps.

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

I gave the Answer A but the mock test gives the answer C ! but (iii) and (iv) are meant for surviving/tolerating heat

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Ans 1:

Anidroid ,Aniruddha from Modern DPS, Faridabad

Class : Class 8

iii & iv are adaptations to prevent dust & surviving sandstorms.I feel brown colour is to camouflage.

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Manas Richhawal from Podar international school, Nashik

Subject :NSO Class : Class 7

A metal rod is shaped into a ring with a small gap. If this is heated, which of the following will not occur?

(A) The length of the rod will increase.

(B) The gap will decrease.

(C) The gap will increase.

(D) The diameter of the ring will increase in the same ratio as the length of the rod.

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Ans 1:

Aditri S Madhavan from SBOAJC, Chennai

Class : Class 9

Ans 2: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is C.

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from ,

Subject :NSO Class : Class 5

Look at the picture :

Which statement incorrectly describes the animal shown?
(i) It shows parental care.
(ii) It has hair on its body.
(iii) It is a bird
(iv) It reproduces by laying eggs.

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

Is bat a bird

View All Answers (3)

Ans 1:

Admin from Revisewise, Noida

Class : Class 3

A bat is a mammal hence shows parental care and has hair on its body.

Ans 2:

Shreyas Gupta from CHIREC International, Hyderabad

Class : Class 8

answer is b

Ans 3:

Arsh Abbas from Maharaja Aggarsain Adarsh Public School, New Delhi

Class : Class 6

B

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