National Science Olympiad Forum By SOF Olympiad Trainer

rashmikedia.ca from JSS PRIVATE SCHOOL, DUBAI, Dubai

Subject :NSO Class : Class 6

Study the flow chart carefully.

Which of the following is correct ?

P	Q
(A) Reversible change	Reversible change
(B) Irreversible change	Reversible change
(C) Irreversible change	Irreversible change
(D) Reversible change	Irreversible change.

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RiptideMel from Modern Vidya Niketan Senior Secondary School Sec 17, Faridabad

Subject :NSO Class : Class 9

A mass of 100 g strikes the wall with speed 5 m/s at an angle as shown in figure and it rebounds with the same speed. If the contact time is 2 x 10^-3sec, what is the force applied by the wall ?

(A) to right

(B) 250 N to right

(C) to left

(D) 250 N to left

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naman from PSBBM, Chennai

Subject :NSO Class : Class 5

A planck, 12 m long, was cut into 6 equal pieces. Each of the 6 pieces was then cut into 2 equal pieces. The length of the smaller piece, is

(A) 1 m

(B) 3 m

(C) 2 m

(D) 4 m

Ans 1:

Aaditya Vichare from St. John's Universal School, Mumbai

Class : Class 10

Ans is 1 metre as 12/6 =2; 2/2=1

Ans 2:

Gauri Singh from St. John's School, Marhauli, Varanasi

Class : Class 10

a. 1 m

Ans 3:

Saswatayu Sengupta from Don Bosco Park Circus , Kolkata

Class : Class 7

A

Ans 4:

Aaditya Vichare from St. John's Universal School, Mumbai

Class : Class 10

Ans is 1 metre as 12/6 =2; 2/2=1

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Sohum Saha from DAV Model School Durgapur, Durgapur

Subject :NSO Class : Class 7

What is the fill form of CNG and LPG?

Ans 1:

Anurag bagal from DAV public school Airoli, Navi Mumbai

Class : Class 7

CNG-compressed natural gas LPG-liquidified petroleum gas

Ans 2:

Nischay verma from The millennium school, Bathinda

Class : Class 8

Compressed natural gas and liquid petroleum gas

Ans 3:

abhinav from fitjee world school, Hyderabad

Class : Class 8

cng=compressed natural gas lpg=lquified petrolium gas

Ans 4:

Aditya Kamat from I V B D High School, Dhavali , Ponda- Goa

Class : Class 7

The full form of CNG & LPG is

CNG = Compressed natural gas

LPG = Liquified (or liquid) petrolium gas

Post Your Answer

NEEL from carmel school, Kolkata

Subject :NSO Class : Class 2

Two shapes shown in the given figure can be put together to make a new shape. Which picture shows this new shape ?

(A)

(B)

(C)

(D)

Ans 1:

Krisha from Chaitanya, Gandhinagar

Class : Class 2

someone please explain this question

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Pulkit Khanna from DELHI PUBLIC SCHOOL RUBY PARK KOLKATA, Kolkata

Subject :NSO Class : Class 7

Your mother goes to buy a woollen shawl from the market. The shopkeeper takes out a small strand of yarn from the shawl and burns it. It smells like a burning plastic. Will it be a good decision to buy this shawl and why?

(A) Yes, as it is a characteristic of pure wool

(B) No, as it is a characteristic of synthetic yarn

(C) Yes, as it is a characteristic of pure silk

(D) No, as it is a characteristic of cotton.

View All Answers (1)

Ans 1:

Dinesh Kumar Sharma from Navy Children School, Chanakyapuri, New Delhi, New Delhi

Class : Class 7

THE ANSWER IS B AS IN THE BURNING TEST BURNING PLASTIC MEANS THE YARN IS A SYNTHETIC FIBRE

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Vivaan Kumar from Heritage Xperiential Learning School, Gurgaon

Subject :NSO Class : Class 4

Elephants sleep for only

(A) 2 to 4 hours a day

(B) 8 to 10 hours a day

(C) 10 to 12 hours a day

(D) 6 to 9 hours a day.

Koalas sleep for approximately 18 hrs. a day. As their diet has low energy. What is an elephant's diet?

View All Answers (2)

Ans 1:

TanulBhagwat from EIS, Pune

Class : Class 5

I think its 6-9 hours

Ans 2:

Nikhil B. S. from Podar International School, Hassan

Class : Class 4

A- 2 to 4 Hours a day

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Sheersh sharma from DPS, NOIDA

Subject :NSO Class : Class 2

Which of these statements is true for a cat and a giraffe ?

(A) Cat is a fat animal and giraffe is a thin animal

(B) Cat is a short animal and giraffe is a tall animal

(C) Cat is a plant eater and giraffe is a flesh eater

(D) All of the above.

View All Answers (1)

Ans 1:

sanaya parakh from n h goel world school, Raipur

Class : Class 2

B

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Satvik B from BVM Global, Chennai

Subject :NSO Class : Class 7

Which of the following statements regarding liver is incorrect?

(A) It helps in digestion by producing bile

(B) It removes and stores the iron from dead red blood cells

(C) It stores proteins and fats

(D) It purifies blood.

View All Answers (1)

Ans 1:

Anurag bagal from DAV public school Airoli, Navi Mumbai

Class : Class 7

The answer is (d) as liver cannot purify blood.Purifying of blood is done by heart

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Nandana from St Thomas Residential School, Trivandrum

Subject :NSO Class : Class 5

Mrs. Verma was on fasting for the past two days, yet she is perfectly fine. Which of the following helped her to provide energy during these two days ?

(A) Minerals present in the body

(B) Vitamins present in the body

(C) Extra fat stored in the body

(D) Water stored in the body.

(A) , (B) , (C) , (D)

View All Answers (2)

Ans 1:

Gauri Singh from St. John's School, Marhauli, Varanasi

Class : Class 10

(C)

Ans 2:

Saswatayu Sengupta from Don Bosco Park Circus , Kolkata

Class : Class 7

C

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