National Science Olympiad Forum By SOF Olympiad Trainer

shubhavi Dhondge from NPS, Banagalore

Subject :NSO Class : Class 8

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

Column I	Column II
(A) Golgi apparatus	(i) Synthesise lipid
(B) Lysosomes	(ii) Powerhouse of the cell
(C) Rough endoplasmic reticulum	(iii) Site of protein synthesis
(D) Secretory	(iv) organelle
(E) Mitochondria	(v) Suicide bags

A (a)-(iv), (b)-(v), (c)-(iii), (d)-(i), (e)-(ii)
B (a)-(iv), (b)-(v), (c)-(iii), (d)-(ii), (e)-(i)
C (a)-(iii), (b)-(v), (c)-(i), (d)-(iv), (e)-(ii)
D (a)-(iv), (b)-(v), (c)-(ii), (d)-(i), (e)-(iii)

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Aaradhya from M G School, Bangalore

Subject :NSO Class : Class 8

Consider the following statements and select the option which correctly identifies true (T) and false (F).
(i) Mars is the red planet because it is hottest planet of solar system.
(ii) The galaxy in which our solar system is located is milky way.
(iii) Hydrogen burns as fuel in stars.
(iv) A nebula is a cloud of dust and gas in space.

	(i)	(ii)	(iii)	(iv)
A	T	T	T	T
B	F	F	F	F
C	T	T	F	F
D	F	T	T	T

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Aaradhya from M G School, Bangalore

Subject :NSO Class : Class 8

An optician holds a test card 50 cm behind a patient. The patient then looks in the plane mirror which is 100 cm away. How far away from the patient’s eyes is the image of the test card?

A 100 cm
B 150 cm
C 200 cm
D 250 cm

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Ashvik Banerjee from Mount Litera Zee School , Vasco

Subject :NSO Class : Class 8

Read the given statements.
(i) IVF is a treatment for infertility when a woman is able to produce ovum however, problems of the Fallopian tube make fertilisation difficult.
(ii) Asexual reproduction is a rapid and easier method of multiplication.
(iii) Unicellular organisms reproducing by binary fission are referred to as ‘immortals’ because actual death of the parent does not occur.
(iv) Metamorphosis is the transformation of an adult animal to larval form.
Which of the given statements are correct?

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

c

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Ashvik Banerjee from Mount Litera Zee School , Vasco

Subject :NSO Class : Class 8

Pick the odd one out from each series given below and select the correct option.
(i) Scrotum, Epididymis, Seminal vesicle, Fallopian tube
(ii) Uterus, Cervix, Vagina, Testis
(iii) Cow, Dog, Cat, Sparrow

	(i)	(ii)	(iii)
A	Fallopian tube	Testis	Sparrow
B	Epididymis	Cervix	Dog
C	Scrotum	Vagina	Cow
D	Seminal vesicle	Uterus	Cat

a

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Ashvik Banerjee from Mount Litera Zee School , Vasco

Subject :NSO Class : Class 8

Which of the following is a mismatched pair?

	Endocrine gland	Hormone
A	Ovaries	– Estrogen
B	Testes	– Testosterone
C	Pancreas	– Calcitonin
D	Adrenal glands	– Adrenaline

c

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Ans 1:

Ahdiya Sharik from St Thomas public school, Trivandrum

Class : Class 8

Ans 2:

Ishan Kapilbhai Barochiya from Mayoor Private School , Abu Dhabi

Class : Class 8

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Ashvik Banerjee from Mount Litera Zee School , Vasco

Subject :NSO Class : Class 8

To an astronaut, the outer space appears

A Dark blue
B White
C Black
D Dark red.

BLack

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Ashvik Banerjee from Mount Litera Zee School , Vasco

Subject :NSO Class : Class 8

India’s first artificial satellite is

A APPLE
B KANISHKA
C ARYABHATTA
D PSLV.

ARYABHATTA

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Ashvik Banerjee from Mount Litera Zee School , Vasco

Subject :NSO Class : Class 8

A planet which is called born sister of Earth is

A Mercury
B Venus
C Mars
D Jupiter.

venus

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Ans 1:

Lakshya from NPS agara, Bengaluru

Class : Class 9

what is sirius?

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Iba Khan from DPS , Noida

Subject :NSO Class : Class 8

Select the correct statements.
(i) Magnesium ribbon on heating in air catches fire and burns with white flame to form magnesium oxide.
(ii) All metals react with water to evolve hydrogen gas.
(iii) Iron reacts with cold water slowly.
(iv) Sodium metal is always kept in kerosene as it reacts vigorously with air and moisture.

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

why is option C not the right answer?

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Ans 1:

vishant mishra cool guy from Deens Academy, Bengaluru

Class : Class 2

Ans 2:

ALICE from Delhi Public School, UDAIPUR

Class : Class 9

Ans 3:

NIVED PRAKASH NAIR from SARVODAYA, THIRUVANANTHAPURAM

Class : Class 8

Ans 4:

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

Class : Class 9

why have they missed the letters 'i' and 'n' in the question?or maybe they have marked the wrong answer as the correct onenot agreedSOF PLEASE TAKE NOTE AND CORRECT THE ERROR

Ans 5:

ALICE from Delhi Public School, UDAIPUR

Class : Class 9

Ans 6:

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

Class : Class 8

Actually, the question should be,"Select the incorrect statements.". Or they must have marked the wrong answer according to the question. SOF, kindly rectify this error.

Ans 7:

Advay Das from Delhi Public School, Gurgaon

Class : Class 5

It should be c not b or the question should have written incorrectly

Ans 8:

NIVED PRAKASH NAIR from SARVODAYA, THIRUVANANTHAPURAM

Class : Class 8

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