National Science Olympiad Forum By SOF Olympiad Trainer

Shounak Goswami from Little Flower School, Jamshedpur

Subject :NSO Class : Class 7

Arpita took a strip of blotting paper of 3 cm 5 cm and clipped one half on the upper surface and the other half on the lower surface of a leaf. What would she most likely observe after one hour ?
(A) Blotting paper clipped on the upper surface is more wet.

(B) Blotting paper clipped on the lower surface is more wet.

(C) Blotting paper is equally wet on both the surfaces of the leaf.

(D) The observation cannot be predicted.

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is B.

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Shounak Goswami from Little Flower School, Jamshedpur

Subject :NSO Class : Class 7

The average velocity of a body is equal to mean of its initial velocity and final velocity. The acceleration of the body is
(A) Variable

(B) Zero

(C) Negative

(D) Uniform

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is D.

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Shounak Goswami from Little Flower School, Jamshedpur

Subject :NSO Class : Class 7

Beena bought of cloth. She used to sew a dress and of the remainder for a skirt. How much cloth did she have left?
(A)

(B)

(C)

(D)

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is D.

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Shounak Goswami from Little Flower School, Jamshedpur

Subject :NSO Class : Class 7

Mohit borrowed Rs. 12,000 from his friend. He gave Rs. 2000 at 18% and the remaining amount at 15%. How much interest did he pay in 3 years?
(A) Rs. 5580

(B) Rs. 8550

(C) Rs. 5508

(D) Rs. 5055

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is A.

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Aarush from Podar, Mumbai

Subject :NSO Class : Class 4

Which of the following statements are correct?

(i) Safety means being careful and avoiding accidents only when walking on the road.

(ii) There are rules and signs for safety of people on the ship.

(iii) We must use footpath for walking and cyclists must keep to the left.

(iv) We must cross the road as we like anywhere and everywhere.

(A) (i), (ii), & (iii)

(B) (ii) & (iii)

(C) (iii) & (iv)

(D) (i) & (iii)

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is B.

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Dhruv from na, Udaipur

Subject :NSO Class : Class 6

Which one number can be placed at the sign of interrogation?

(A) 1356

(B) 862

(C) 1234

(D) 864
What is the pattern here?

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Yasmeen Shaikh from Ryan International CBSE, Mumbai

Subject :NSO Class : Class 4

Study the given diagram carefully. The number represented by (?) is _______.

(A) 24

(B) 16

(C) 64

(D) 196
how come 16

Ans 1:

Himani Arora from JVM, Ballari

Class : Class 5

The logic behind answer..?

Ans 2:

Bidusmita Rath from Sri Chaitanya Techno School, Bangalore

Class : Class 5

how to formulate such a complex Q: in exam....?

Ans 3:

nitin loya from prabhat kids, Akola

Class : Class 4

easy but Brainny

Ans 4:

Adithi Keshava from National Center For Excellence , Bangalore

Class : Class 7

Ans 5:

Tarpan Pramanik from J.N.Academy, Berhampur

Class : Class 5

1.Actually the reason behind this is 10÷2*5=25 Now here 25 s square means 25*25= 625 2. In the same way in pattern ii, 9÷3*2=6 which is the square root of 36 3. According to this logic 8÷4*2=4 which is the square root of 16. So, the correct answer is option (b) 16

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HARSHIKAA DHAR from Delhi Public School, Noida

Subject :NSO Class : Class 4

Beena observed the Moon on 15th December and drew its sketch as shown. What will be the shape of the moon on 13th January ?

(A)

(B)

(C)

(D)

View All Answers (1)

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is C.

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HARSHIKAA DHAR from Delhi Public School, Noida

Subject :NSO Class : Class 4

Find the perimeter of the given figure (not drawn to scale).

(A) 68 cm

(B) 65 cm

(C) 57 cm

(D) 71 cm

View All Answers (7)

Ans 1:

OISHIK KUNDU from Delhi Public school North kolkata, baranagar

Class : Class 4

same as me

Ans 2:

Jayanth from The Deens Academy, Bengaluru

Class : Class 4

Ans 3:

ABHAY AGARWAL from ,

Class : Class 3

Ans is sixty five (B)

Ans 4:

S Nithyanth from Geethanjali Vidyalaya, Bangalore

Class : Class 6

Ans 5:

ABHAY AGARWAL from ,

Class : Class 3

This is terrible

Ans 6:

Priyam Bhattacharya from cambridge court high school, jaipur

Class : Class 6

Ans 7:

S Nithyanth from Geethanjali Vidyalaya, Bangalore

Class : Class 6

same

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Sumeet Verlekar from ,

Subject :NSO Class : Class 5

The Agra Fort is made up of which kind of rocks?

A Limestone
B Sandstone
C Granite
D Marble

Not everyone knows the Agra fort therefore they will not be able to answer this question so this question is irrelevent. Agra fort information is also not provided in any study material of MTG.

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