National Science Olympiad Forum By SOF Olympiad Trainer

Dishita Santosh Walujkar from Nutan English School, Kurduwadi

Subject :NSO Class : Class 4

Match column I with column II and select the correct option.

A1-(B), 2-(C), 3-(A), 4-(D), 5-(E)
B1-(A), 2-(E), 3-(C), 4-(B), 5-(D)
C1-(E), 2-(D), 3-(B), 4-(C), 5-(A)
D1-(C), 2-(B), 3-(E), 4-(A), 5-(D)

C

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Ans 1:

Annlisa Castlia from BPS, HYD

Class : Class 5

The correct answer is option c.Adaptation for flight--- Hollow bonesAdaptation For protection from enemies--- Camouflage Adaptation for eating flesh--- Sharp and well-developed caninesAdaptation to living in cold regions --- Thick layer of fat under the skinAdaptation for living in water--- Gills

Ans 2:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi

Class : Class 7

C

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AHANA BAG from DELHI PUBLIC SCHOOL JOKA SOUTH KOLKATA, KOLKATA

Subject :NSO Class : Class 4

Study the given flow chart and select the correct match of any three letters with respective animals.

A a - Bat, e - Ostrich, f - Goldfish
B d - Pigeon, c - Cockroach, e - Human
C b - Bat, e - Ostrich, f - Cockroach
D a - Pigeon, b - Human, d - Goldfish

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Dishita Santosh Walujkar from Nutan English School, Kurduwadi

Subject :NSO Class : Class 4

Study the two life cycles P and Q, and select the option that correctly identifies the organisms which show these cycles, respectively.

	P	Q
A	Mosquito	Butterfly
B	Lizard	Frog
C	Housefly	Cockroach
D	Grasshopper	Dragonfly

C

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Ans 1:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi

Class : Class 7

C

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Anhad A from Chrysalis, Bangalore

Subject :NSO Class : Class 5

Swati wanted to study the effect of temperature on the rate of evaporation. For this, she carried out the experiment under four different sets of conditions as shown in the table.

Characteristic	Set W	Set X	Set Y	Set Z
Surface area of the container	80 cm³	120 cm³	80 cm³	120 cm³
Humidity	80%	90%	90%	90%
Temperature	75°C	120°C	75°C	75°C

Which of the following is best suited to conclude the effect of temperature on the rate of evaporation?

ASet W and Set Z
BSet X and Set Z
CSet Y and Set Z
DSet W and Set Y

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YASH SAH from DELHI PUBLIC SCHOOL MIS DOHA, Doha

Subject :NSO Class : Class 7

A light ray travels through three mediums as shown in the figure. Which of the following shows them in ascending order of their refractive index?

A Medium 1, medium 2, medium 3
B Medium 2, medium 3, medium 1
C Medium 3, medium 1, medium 2
D Medium 1, medium 3, medium 2

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Ans 1:

Ekansh Agrawal from NDPS, Indore

Class : Class 7

ANSWER IS A

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Valli Rams from Blossom Public School, Thanjavur

Subject :NSO Class : Class 6

The food items shown in the figure are rich in nutrient X. Read the given statements regarding the nutrient X.

(i) When we grow, our body needs X to make new cells.
(ii) Intake of X gives energy immediately.
(iii) Growing children and sick people require less amount of X in their diet.
(iv) X gets stored in our body and keep us warm.
Which of the given statements are incorrect?

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

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YASH SAH from DELHI PUBLIC SCHOOL MIS DOHA, Doha

Subject :NSO Class : Class 7

The velocity-time and acceleration-time graphs of a particle are given here. Its position-time graph may be given as

A
B
C
D

qwertyasdfzxcv

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Ans 1:

YASH SAH from DELHI PUBLIC SCHOOL MIS DOHA, Doha

Class : Class 8

Ans 2:

Prachi Todalge from New India School, Pune

Class : Class 7

option b is correct

Ans 3:

Daiwik from DPS, Doha

Class : Class 7

UMMMMM, I DONT GET IT

Ans 4:

Sarah Ahmad from st. mary's school, delhi

Class : Class 8

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Can I get Rank 35 darryl from Global Indian international school, Brawl stars

Subject :NSO Class : Class 6

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Ans 1:

Adyanika Satpathy from DPS International School, Singapore

Class : Class 9

Ans 2:

Can I get Rank 35 darryl from Global Indian international school, Brawl stars

Class : Class 8

good ques

Ans 3:

Nimish Khandekar from SNBP International School, Pune

Class : Class 10

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Dishita Santosh Walujkar from Nutan English School, Kurduwadi

Subject :NSO Class : Class 4

Two similar pots with similar plants were set up as shown in the figure. Both pots were left in the garden and watered daily with the same amount of water. What will happen to the plants X and Y after a month?

ABoth plants X and Y will flower, but plant X will have more flowers than plant Y.
BPlant X will grow taller than plant Y because plant Y will not get sunlight.
CPlant Y will become bushy and its stem will become woody while plant X will remain as it is.
DPlant Y will wither due to lack of air while plant X will grow normally.

D

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Dishita Santosh Walujkar from Nutan English School, Kurduwadi

Subject :NSO Class : Class 4

Study the given flow chart carefully. Cotton and metal are represented by the numbers ____ and ____ respectively.

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

C

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