National Science Olympiad Forum By SOF Olympiad Trainer

Shrihan Koley from Kairali School, Ranchi

Subject :NSO Class : Class 3

On the same night, Rashmi and Nidhi were looking at the Moon from different parts of New Delhi. Rashmi correctly drew the shape of the Moon as shown in the given figure. Which of the following shapes would Nidhi see?

A
B
C
D

View All Answers (2)

Ans 1:

Nivaan Trisal from NPS East, Bangalore

Class : Class 5

a

Ans 2:

Shrihan Koley from Kairali School, Ranchi

Class : Class 6

Submit Your Answers

Post Your Answer

MOHIT REDDY NEELAPU from KKIS, Singapore

Subject :NSO Class : Class 6

Which of the following is a correct statement?

ABasalt is an igneous rock.
BPumice is a sedimentary rock.
CConglomerate is a metamorphic rock.
DGneiss is an igneous rock.

View All Answers (2)

Ans 1:

Manasvi Jadhav from Holy Angels School, Dombivli

Class : Class 6

Ans 2:

Manasvi Jadhav from Holy Angels School, Dombivli

Class : Class 6

Submit Your Answers

Post Your Answer

NEELADRI MISHRA from D A V Public School. Unit VIII, Bhubaneshwar

Subject :NSO Class : Class 7

When two parallel rays of light (1 and 2) enter a convex lens with the optical centre at O, which one of the following ray diagrams (vertical arrow represents the lens) correctly represents the passage of the rays after passing through the lens?

A
B
C
D

View All Answers (0)

Submit Your Answers

Post Your Answer

MOHIT REDDY NEELAPU from KKIS, Singapore

Subject :NSO Class : Class 6

Running vehicles on CNG would reduce _________ pollution.

ALand
BAir
CWater
DNoise

View All Answers (0)

Submit Your Answers

Post Your Answer

Chinmay Jain from Olympus High Senior Secondary School, Vidisha

Subject :NSO Class : Class 7

In a row of 40 boys, Aman is eighteenth from the left end. If Rohan is just to the left of Aman, then find the position of Rohan from the right end.

A25^th
B24^th
C22^nd
D23^rd

View All Answers (1)

Ans 1:

Advay Agarwal from Avm, Mumbai

Class : Class 8

Submit Your Answers

Post Your Answer

AHANA BAG from DELHI PUBLIC SCHOOL JOKA SOUTH KOLKATA, KOLKATA

Subject :NSO Class : Class 8

Match column I with column II and select the correct answer from the codes given below.

Column I	Column II
P. The most common form of polyester	(i) Spandex
Q. A synthetic fibre also known as lycra	(ii) Acrylic
R. A synthetic fibre that closely resembles wool	(iii) PET
S. The first true synthetic fibre	(iv) Nylon

A P - (iv), Q - (ii), R - (iii), S - (i)
B P - (iii), Q - (i), R - (ii), S - (iv)
C P - (ii), Q - (iii), R - (i), S - (iv)
D P - (iii), Q - (ii), R - (iv), S - (i)

View All Answers (5)

Ans 1:

AHANA BAG from DELHI PUBLIC SCHOOL JOKA SOUTH KOLKATA, KOLKATA

Class : Class 9

Ans 2:

Student from School, City

Class : Class 8

b

Ans 3:

Student from School, City

Class : Class 8

Ans 4:

from ,

Class :

its gotta be b

Ans 5:

AHANA BAG from DELHI PUBLIC SCHOOL JOKA SOUTH KOLKATA, KOLKATA

Class : Class 9

b

Submit Your Answers

Post Your Answer

Rupkatha Bhattacharyya from Ashok hall girls high school, KOLKATA

Subject :NSO Class : Class 6

Select a figure from the options which satisfies the same conditions of placement of the dots as in the given figure.

A
B
C
D

View All Answers (0)

Submit Your Answers

Post Your Answer

Yuvraj bansal from Lady Fatima, Patiala

Subject :NSO Class : Class 4

Which of the following animals does NOT camouflage?

AChameleon
BStick insect
CHawk moth caterpillar
DGrasshopper

All can camouflage

View All Answers (1)

Ans 1:

Divyamsh from The Sky World School, Panchkula

Class : Class 6

all are camo

Submit Your Answers

Post Your Answer

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore

Subject :NSO Class : Class 7

Read the following statements.
(P) The branchy part of a tree above the trunk is known as the ______ of the tree.
(Q) The branches of tall trees look like a roof over the other plants. This is known as _____.
(R) The _______ is covered with a layer of dead and decaying leaves, fruits, seeds, twigs and herbs.
(S) In rainforests, the vegetation that grows under the shade of the canopy is known as the ______.
Select the option that correctly fills up the blanks in any two statements.

A (Q) - Crown; (S) - Forest floor
B (P) - Crown; (S) - Understorey
C (Q) - Canopy; (R) - Understorey
D (P) - Canopy; (R) - Forest floor

SOF, the chapterwise test for Natural resources and their conservation is not working. After the 4th question it is not working. The questions are repeating again and again, just the way it is in a computer loop. I am not able to reach the other 6 questions. Therefore, I ask you to kindly rectify this error immediately.

View All Answers (0)

Submit Your Answers

Post Your Answer

Mariam Riyas from AlAin juniors , Al Ain

Subject :NSO Class : Class 4

Select the correct match.

A Lava - Molten rocks present inside the Earth
BEarth’s axis - Tilted at 23.5°
CFestival linked to movement of Moon - Pongal
DPlanet that rotates from East to West - Earth

View All Answers (2)

Ans 1:

Pragna S from APS PUBLIC SCHOOL, BASAVANAGUDI

Class : Class 4

None of them are correct. The Earth axis is tilted at 25.4 degrees.

Ans 2:

Pragna S from APS PUBLIC SCHOOL, BASAVANAGUDI

Class : Class 4

User Forum

Ans 1:

Ans 2:

Ans 1:

Ans 2:

Ans 1:

Ans 1:

Ans 2:

Ans 3:

Ans 4:

Ans 5:

Ans 1:

Ans 1:

Ans 2:

Related Links