CBSE Class 8 Science NSO Olympiad MCQs with Answers Set N

Refer to CBSE Class 8 Science NSO Olympiad MCQs with Answers Set N provided below available for download in Pdf. The MCQ Questions for Class 8 Science with answers are aligned as per the latest syllabus and exam pattern suggested by CBSE, NCERT and KVS. Multiple Choice Questions for NSO Olympiad are an important part of exams for Class 8 Science and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 8 Science and also download more latest study material for all subjects

MCQ for Class 8 Science NSO Olympiad

Class 8 Science students should refer to the following multiple-choice questions with answers for NSO Olympiad in Class 8.

NSO Olympiad MCQ Questions Class 8 Science with Answers

Question. Which of the following statements are true?
I. When a batsman hits a cricket ball with his bat, the force applied by the batsman is muscular force.
II. In an electric bell, the hammer strikes the gong due to electrostatic force.
III. During dry weather, hair tend to attract the comb while combing, this is due to magnetic force of attraction.
IV. Walking on ice is difficult because of lack of frictional force.
A. I and II only
B. I and IV only
C. II, III and IV only
D. I, II and IV only
Answer : B

Question. Match column I with column II and select the correct option from the codes given below.
        Column I                        Column II
P. String vibration                I. Tabla
Q. Membrane vibration       II. Bicycle bell
R. Vibration of air               III. Guitar
S. Vibration of plate           IV. Flute
     P       Q      R      S
A. III      I        IV      II
B. IV      III      II       I
C. III      IV      II       I
D. II       I        IV      III
Answer : A

Question. In a large commercial complex there are four ways to reach the main road. One of the paths has loose soil, the second is laid with a polished granite, the third is laid with bricks and the fourth has cemented gravel surface. It is raining heavily and Suman wants to reach the main road. The path on which she is least likely to slip is
A. Loose soil
B. Bricks
C. Polished granite
D. Cemented gravel.
Answer : D

Question. The diagram shows two mercury barometers, one filled with a partial vacuum and the other filled with air. What happens to the height of mercury, h when these two barometers are taken to a mountain top?

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N

            Air                     Partial vacuum
A. Decreases                Decreases
B. Decreases                Increases
C. Increases                 Increases
D. Remains same        Decreases
Answer : A

Question. A car travelling normally towards a cliff at a speed of 50 m s–1, sounds its horn when it is 0.7 km away. Taking the speed of sound to be 300 m s–1 in air, find the time taken for the driver to hear its echo.
A. 0.04 s
B. 4.0 s
C. 4.7 s
D. 28.0 s
Answer : B

Question. A pith ball makes contact with, and is then repelled by a highly charged sphere as shown in the diagram. 
Which of the following will happen when an earthed metal plate is brought close to, but not touching, the pith ball?

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-1

A. The ball will be repelled to the far side of the dome.
B. The ball will be repelled so that it makes contact with dome.
C. The ball will be attracted to the plate, make contact, and be neutralised.
D. The ball will be attracted to the plate, make contact, and then be repelled.
Answer : C

Question. The pressure on the tyres of a sedan car is P. The contact surface of each tyre with the floor is A. Find the new contact surface of each tyre when air is released from the tyre and the pressure of the car is reduced to 0.75 P.
A. 1.25 A
B. 1.33 A
C. 1.67 A
D. 4.00 A
Answer : B

Question. A plane mirror is inclined at 40° to floor as shown in figure.

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-2

An incident ray parallel to the floor strikes the mirror and a reflected ray is formed.
If the angle of inclination is increased to 50° without changing the direction of the ray, then what is the change in angle between the incident ray and the reflected ray?
A. 5°
B. 10°
C. 20°
D. 40°
Answer : C

Question. A thin convex lens is placed on a plane mirror. A pen is adjusted vertically until its image is seen to be at the same position when viewed from the top as shown.
Given that f is the focal length of the lens, what is the distance between the pen and the optical centre of the lens?

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-3

A. 0.5 f
B. f
C. 2 f
D. 4 f
Answer : C

Question. Suppose a new planet is discovered which revolves around the Sun (i.e., it is a part of our solar system).
What is its time period if its orbit lies between Saturn and Uranus?
A. Less than that of Uranus
B. More than that of Uranus
C. Equal to that of Uranus or Saturn
D. Less than that of Saturn
Answer : A

Question. A person throws a ball vertically upwards standing on the surface of earth. Same person throws same ball with same force vertically upwards standing on the surface of moon. Then,
A. The ball thrown from the moon will keep going up and never come back
B. The ball thrown from earth will attain more height than the ball thrown from the moon
C. In both the cases, balls will attain same heights
D. The ball thrown from the moon will attain more height than the ball thrown from the earth.
Answer : D

Question. Read the given statements and select the correct option.
Statement 1: LEDs are increasingly being used for lighting.
Statement 2: LED light sources consume less electricity and have longer lifetime than light bulbs and fluorescent tubes.
A. Both statement 1 and statement 2 are true and statement 2 is the correct explanation of statement 1.
B. Both statement 1 and statement 2 are true but statement 2 is not the correct explanation of statement 1.
C. Statement 1 is true but statement 2 is false.
D. Statement 1 is false but statement 2 is true.
Answer : A

Question. Ram has a sitar. The string is plucked in the middle first and a sound is produced. Again, the middle of the string is pressed and plucked at one-fourth of the length with the same force and an another sound is produced. Which of the following statements is correct?
A. Sound produced in first case is louder.
B. Sound produced in first case has higher pitch.
C. Sound produced in second case is louder.
D. Sound produced in second case has higher pitch.
Answer : D

Question. A group of acrobats stack themselves as shown. Given that all the acrobats have same weight, which acrobat(s) must be the strongest?

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-4

A. 1 and 2
B. 3
C. 4 and 5
D. 6, 7 and 8
Answer : B

Question. A wooden table of mass 100 kg is lying on a floor.
A man pushes the table with a force of 100 N and another man tends to stop the table with a force of 200 N as shown in the figure. If the friction between the floor and table is 80 N, then 100 N 100 kg 200 N

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-5

A. The table will move towards right with 100 N force
B. The table will move towards left with 20 N force
C. The table will remain at rest
D. The table will move towards right with 20 N force.
Answer : B

Question. The rear view mirror of a car is a plane mirror. A driver is reversing his car at a speed of 2 m s–1. The driver sees in his rear view mirror the image of a truck parked behind his car. The speed at which the image of the truck appears to approach the driver will be
A. 1 m s–1
B. 2 m s–1
C. 4 m s–1
D. 8 m s–1
Answer : B

Question. What principle is used in a newton spring balance?
A. The mass of an object depends on its density.
B. The mass of an object depends on the gravity pulling it.
C. The weight of an object is directly proportional to its mass.
D. The extension of the spring is directly proportional to the weight pulling it, and weight depends upon mass.
Answer : D

Question. Match column I with column II and select the correct option from the codes given below.
   Column I                   Column II
P. Bulb                          I. Insulator
Q. Electroplating          II. Conductor
R. Pure water              III. Heating effect of current
S. Salt solution            IV. Chemical effect of current
     P           Q          R          S
A. III          II           IV          I
B. III          IV          I            II
C. I            III          IV          II
D. IV          III          II           I
Answer : B

Question. A force of 12 N acts on a block P and block Q of masses 2 kg and 4 kg respectively as shown. Given that the floor is smooth, find the force on the string between  blocks P and Q.

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-6

A. 2 N
B. 4 N
C. 8 N
D. 12 N
Answer : C

Question. Which of the following statements are correct?
I. The flame of a kerosene lamp gives off light because carbon particles produced due to incomplete combustion of kerosene burn with a glow.
II. A yellow flame indicates complete combustion.
III. A yellow flame deposits black soot on cooking utensils.
IV. All combustible substances produce flame.
V. Petrol is a better fuel than kerosene.
A. I and II only
B. I, III and V only
C. III and V only
D. III, IV and V only
Answer : B

Question. A few materials are listed in the box.
(i) Nylon (ii) Acrylic (iii) Terylene
(iv) Cotton (v) Wool (vi) Melamine
(vii) PET
Which of the following represents a correct statement about these materials?
A. (ii), (iv) and (v) are natural polymers.
B. (ii) is a good substitute for wool and (iii) is a good substitute for silk.
C. (vii) is a thermosetting plastic while (vi) is a thermoplastic.
D. (iii) and (vii) are polyesters while (i) is a polyamide
Answer : D

Question. Ms. Rashmita, a science teacher has set up an experiment as shown in the figure.

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-7

Which of the following represent the correct observations?
(i) Both the metal strips dissolve in beaker II.
(ii) Colour change is observed in beaker I.
(iii) No reaction takes place in beaker III.
(iv) Fe strip will dissolve faster in beaker I.
(v) Reaction occurs in beaker III but no colour change is observed.
A. (iii) and (iv) only
B. (i) and (iii) only
C. (ii) and (v) only
D. None of these
Answer : B

Question. Calorific values of a few fuels are given in the table.
Fuel                                P      Q      R         S      T
Calorific value (kJ/g)  6-8    50   150    17-22   45
Fuels P, Q, R, S and T can be best represented by
A. Wood, kerosene, hydrogen, cowdung cakes and petrol
B. Cowdung cakes, methane, hydrogen, wood and petrol
C. Hydrogen, petrol, kerosene, cowdung cakes and wood
D. None of these.
Answer : B

Question. Nitika, a class 8 student performed a few experiments to study the reactivity of metals. She summarised her observations in the given table.

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-8

Answer : C

Question. Rohit took a burning candle and covered it with a glass chimney as shown in figure I. He took another burning candle and slid a thin tin plate with a hole in the middle just below the flame and above the melted wax as shown in figure II. Then, he took the third candle and covered it with a glass chimney which was kept on the wooden blocks as shown in figure III.

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-9

Which of the following observations is correct?
A. Smoke is produced in candle III due to less supply of air.
B. Candles I and III burn freely.
C. Tin plate conducts more heat towards the wick and hence, candle II becomes brighter.
D. The flame flickers and produces smoke in candle I.
Answer : D

Question. The given table represents the properties and uses of a few plastics

 PlasticPropertyUses
IPVCThermosettingFor making electrical
plugs
IIPolystyreneVery lightFor safe packaging of
delicate items
IIIBakeliteThermoplasticFor making adhesive
tapes
IVMelamineHighly polishedFor making table tops
VPolytheneStrong but
flexible
For making pipes to
transport oil or water

The plastics represented incorrectly are
A. I and IV only
B. I and III only
C. II and III only
D. I, III and V only.
Answer : B

Question. The given figure represents contents of a matchstick

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-10

 WXYZ
ARed
phosphorus
Potassium
perchlorate
Glass
powder
Antimony
trisulphide
BGlass
powder
Antimony
trisulphide
Potassium
chlorate
Red
phosphorus
CPotassium
chlorate
Antimony
trisulphide
Glass
powder
Red
phosphorus
DAntimony
trisulphide
Red
phosphorus
Potassium
chlorate
Glass
powder

Answer : B

Question. Soham studied burning characteristics of a few fibres and summarised his observations in the given table

FibreResult of burningType of fibre
IMelts and forms dark hard beadsSynthetic
IIBurns completely, forms ashNatural
IIIBurns with smoke, forms beadsSynthetic
IVBurns quickly with a smell of burning paperSynthetic
VBurns slowly and leaves behind dark hollow beads which get crushed easily to powderNatural

Fibres I, II, III, IV and V could be respectively
A. Polyester, silk, nylon, acrylic and wool
B. Acrylic, wool, cotton, nylon and silk
C. Nylon, silk, polyester, wool and cotton
D. Nylon, cotton, polyester, rayon and silk.
Answer : D

Question. Read the given passage and fill in the blanks by selecting an appropriate option.
Non-metals find wide applications in industries. For example i is used in electrodes, ii is used in welding metals, iii is used to make antiseptic creams while iv is used as a preservative due to its inert nature.

 (i)(i)(i)(iv)
AcarbonHydrogenchlorinePhosphorus
BHydrogenoxygenchlorinenitrogen
CGraphiteHydrogensulphurnitrogen
DPhosphorussulphuroxygencarbon

Answer : C

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

Column I 
(Gaseous fuel)
Column II 
(Composition)
P. Water gas(i) Methane + Hydrogen +
Carbon monoxide
Q. Coal gas(ii) Nitrogen + Carbon monoxide
R. Producer gas(iii) Butane + isobutane
S. LPG(iv) Hydrogen + Carbon
monoxide
T. Natural gas(v) Methane

A. P – (iii), Q – (iv), R – (i), S – (v), T – (ii)
B. P – (iv), Q – (v), R – (ii), S – (iii), T – (i)
C. P – (iv), Q – (i), R – (ii), S – (iii), T – (v)
D. P – (iii), Q – (ii), R – (v), S – (iv), T – (i)
Answer : C

Question. Select the option that correctly identifies the given species as extinct (P), critically endangered (Q) and vulnerable (R) according to IUCN Red List.

 PQR
AAsiatic 
wild ass
Indian gazelleLion tailed 
macaque
BDodoOne horned 
rhinoceros
Chinkara deer
CPassenger 
pigeon
Ivory-billed 
woodpecker
Bare-faced 
curassow
DSilvery 
pigeon
BlackbuckRed panda

Answer : C

Question. Names of a few protected areas are given below.
Kanha National Park, Dachigam National Park,
Keoladeo National Park, Jim Corbett National Park,
Ranthambore National Park, Dudhwa National Park,
Periyar National Park, Pin Valley National Park,
Gangotri National Park
How many of these are tiger reserves?

A. 6
B. 8
C. 4
D. 5
Answer : D

Question. Refer to the given Venn diagram

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-11

Which of the following can be placed at X ?
(i) Manufacture of different antibiotics
(ii) Preparing yogurt
(iii) Fermentation of sugar to get alcohol
(iv) Manufacture of vitamin B complex tablets
(v) Decomposition of organic waste and ensuring nutrient recycling in ecosystem
(vi) Causing diseases in plants and animals

A. (ii), (iii) and (vi)
B. (i), (ii), (v) and (vi)
C. (i), (iii), (iv), (v) and (vi)
D. (ii), (iii), (iv) and (v)
Answer : C

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

Column IColumn II
(a) Ribosomes(i) Jelly-like substance
(b) Lysosomes(ii) Powerhouse of the cell
(c) Endoplasmic reticulum(iii) Site of protein synthesis
(d) Cytoplasm(iv) Transporting tubules
(e) Mitochondria(v) Suicidal bags

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

Question. Select the incorrect difference(s) between National park and Sanctuary.

 National parkSanctuary
(i)It is meant for protection
of both flora and fauna
It is meant for protection
of only fauna.
(ii)Grazing is allowed.Grazing is not allowed
(iii)Private ownership is not
permitted.
Private ownership is
permitted.

A. (i) and (iii) only
B. (i) and (ii) only
C. (ii) and (iii) only
D. (ii) only
Answer : D

Question. A large forest area was destroyed by forest fire and remained without any vegetation for a long time. It finally got converted to a desert.
Which of the following graphs correctly depicts the changes in various parameters of that area over a period of time from the point of deforestation to desertification ?
Key:
— Groundwater level
— Mean annual temperature
— Top soil

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-12

Answer : C

Question. Read the given paragraph.
Organelle X is abundantly present in glandular cells and is actively involved in glycosylation of proteins synthesised in organelle Y. Both organelles are involved in the formation of organelle Z that brings about cell autolysis.
Identify organelles X, Y and Z and select the correct option regarding them.
A. Organelles X and Z are bound by double membranes whereas organelle Y is bound by single membrane.
B. Organelle Z takes part in disposal of cell debris and also provides nourishment during starvation by hydrolysing organic food stored in cells.
C. Organelles X and Y are abundantly found in mammalian red blood cells whereas organelle Z is found only in plant cells.
D. Organelle Y provides large surface area for attachment of single membrane bound organelle which is often referred to as protein factory.
Answer : B

Question. Refer to the given figure and select the correct option regarding it.

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-13

A. The given pregnancy is dangerous for the mother as the Fallopian tube might rupture as the fetus enlarges.
B. The walls of Fallopian tubes are not suited to thickening and vascularisation unlike the uterine wall hence, the developing fetus may not receive sufficient nutrients and oxygen.
C. The given case is a normal pregnancy where zygote first implants in Fallopian tube and later in the third trimester it detaches and migrates to uterus for implantation in uterine wall and further development.
D. Both A and B
Answer : D

Question. Refer to the given Venn diagram.

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-14

Select the correct option regarding organisms P, Q and R.
A. P could be toucan whereas Q could be black mamba.
B. P could be Anguilla whereas R could be Necturus.
C. R could be salmon whereas Q could be Pteropus.
D. P could be Struthio whereas Q could be Casuarius.
Answer : C

Question. The given graph shows changes in the levels of gonadal hormones X and Y in two normal persons, respectively over their lifetime.

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-15

Select the correct option regarding this.
A. X causes development of breasts whereas Y causes broadening of pelvic region during puberty in adolescents.
B. Gland that secretes X also secretes large number of motile gametes every month whereas gland secreting Y usually secretes one non-motile gamete every month.
C. If persons producing hormones X and Y respectively would have married each other and produced babies then only person producing Y would have been responsible for determining the sex of babies.
D. Person secreting hormone X produces gametes only during the period between menarche and menopause however person secreting hormone Y can produce gametes right from puberty till the end of life.
Answer : B

Question. Refer to the given flow chart.

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-16

Identify hormones X and Y and select the correct option regarding them.
A. Glands secreting hormone Y are located on the posterior surface of glands secreting hormone X.
B. Myxoedema is caused by hyposecretion of a hormone secreted by gland that also secretes hormone Y.
C. Both hormones X and Y are secreted by same endocrine gland but are antagonistic to each other in functioning.
D. Hyposecretion of hormone Y leads to osteoporosis as more calcium is drawn from bones to raise blood calcium level.
Answer : A

Question. The given diagram represents a village.
The waste material from residential area and factories is dumped into the river stream that passes through the village.

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-17

Which line in the graph correctly shows the change in the population of aquatic fish when they swim downstream from points P to Q?
A. I
B. II
C. III
D. IV
Answer : C

Question. Naina placed two different cultures of unicellular organisms, Q and R, into two identical beakers. She allowed both organisms to grow in the beakers and recorded the amount of area they had grown every 10 minutes. She then tabulated the results as follows:

Duration (mins.)0102030405050
Area of growth of
organism Q (cm2)
48163264128256
Area of growth of
organism R (cm2)
4488161632

Based on the results in the table, which of the following conclusions could be made ?
A. Organism Q multiplied itself at every interval of ten minutes. 
B. Organisms Q and R are sexually reproducing organisms.
C. Organism R multiplied itself at every interval of forty minutes.
D. At the end of an hour, organism R had grown faster than organism Q.
Answer : A

Question. Refer to the given dichotomous key and select the incorrect option regarding it.
I. (a) It is a prokaryotic microorganism. – Go to II
(b) It is a eukaryotic microorganism. – Go to III
II. (a) It causes a disease in plants. – P
(b) It causes a disease in humans. – Q
III. (a) It possesses chlorophyll. – R
(b) It lacks chlorophyll. – Go to IV
IV. (a) It is used in production of an antibiotic. – S
(b) It causes kala azar in humans. – T
A. P could be Xanthomonas that causes citrus canker in plants whereas Q could be Clostridium that causes tetanus in humans.
B. R could be Chlorella whereas S could be Streptomyces.
C. S could be Penicillium whereas T could be Leishmania.
D. Q could be Mycobacterium that causes tuberculosis in humans whereas S could be Aspergillus.
Answer : B

Question. The given pie chart depicts the percentage population of five animals in a grassland ecosystem that are related to each other in a food chain.

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-18

If heavy pesticides are sprayed on plants in this area then select the option that correctly depicts the ascending order of pesticide concentration in living tissues of animals at different trophic levels.
A. P < Q < R < S < T
B. T < S < R < Q < P
C. R < T < P < Q < S
D. S < T < R < Q < P
Answer : B

ACHIEVERS SECTION

Question. Refer to the given table and select the correct option regarding P, Q, R, S and T.

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-19

 PQRST
AEuglenaRhizobiumGiardiaSpirogyrClostridium
BChlamy-domonasPseudo-monasSalmon -ella RhizopusTrypanosoma
CFucusMycobac-teriumPenicill-umAgaricusWuchereria
DVolvoxMucorAmoebaLeishm-aniaParamecium

Answer : B

Question. Read the given paragraph.
Sameer is a farmer who lives in Rajasthan. In the past few years, he was only sowing maize crop in his field.
But with each passing year the crop yield went down gradually.
What could be the probable reason for this (P) ? Also suggest a suitable solution to this problem (Q).

 PQ
AMaize consumed a lotof nitrogen present in the soil thereby making it nitrogen deficientHe should practice crop rotation wherein soybean crop can be grown alternately with maize crop in the same field
BOverall soil fertility decr eas ed due to sowing of same crop again and again thereby decreasing crop yieldHe should practice mixed cropping where maize should be grown with wheat crop.
CMaize crop grows in water logged soil hence its cultivation in dry areas is not possibleHe should practice drip irrigation that ensures excess water supply to all plants
DNone of these 

Answer : A

Question. The given figure represents destructive distillation of coal

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-20

Study the figure carefully and choose the incorrect statement(s).
I. The residue left behind after destructive distillation of coal is a better fuel than coal and produces no smoke.
II. X is used for the manufacture of producer gas and nitrogenous fertilisers.
III. Y is almost a pure form of carbon and is used to reduce metal oxides to get metals.
IV. Z on fractional distillation yields many organic compounds which are used to make pesticides, explosives, perfumes etc.
V. The process is carried out by heating coal strongly to about 1000°C in the presence of air.
A. I, III and IV only
B. II, III, IV and V only
C. I only
D. All of these
Answer : B

Direction (Q. No. a and b): Refer to the given passage and answer the following questions.
An experiment is conducted by a student to check the conductivity of potato and the set-up is shown here.

""CBSE-Class-8-Science-NSO-Olympiad-MCQs-with-Answers-Set-N-21

Question. Which of the following will be the observation made by the student if the switch is closed and circuit is left unattended for one hour?
I. Bulb will start glowing as soon as the switch is closed.
II. Bulb will not glow throughout the experiment.
III. Bulb will glow after an hour of the switch is closed.
IV. A yellowish blue spot will appear around negative electrode.
V. A greenish blue spot will appear around positive electrode.
A. I and V only
B. III, IV and V only
C. II and V only
D. I and IV only
Answer : A

Question. What happens to the compass needle when the switch is closed?
A. The compass needle will point towards the right.
B. The compass needle will point towards the left.
C. The compass needle will not deflect.
D. The compass needle will point downwards
Answer : B

Chapter 01 Crop Production and Management
CBSE Class 8 Science Crop Production and Management MCQs
Chapter 02 Microorganisms Friend or Foe
CBSE Class 8 Science Microorganisms Friend or Foe MCQs
Chapter 03 Synthetic Fibres and Plastics
CBSE Class 8 Science Synthetic Fibre and Plastics MCQs
Chapter 04 Materials Metals and Non Metals
CBSE Class 8 Science Materials Metals and Non Metals MCQs
Chapter 05 Coal and Petroleum
CBSE Class 8 Science Coal and Petroleum MCQs
Chapter 06 Combustion and Flame
CBSE Class 8 Science Combustion and Flame MCQs
Chapter 07 Conservation of Plants and Animals
CBSE Class 8 Science Conservation of Plants and Animals MCQs
Chapter 08 Cell Structure and Functions
CBSE Class 8 Science Cell Structure and Functions MCQs
Chapter 09 Reproduction in Animals
CBSE Class 8 Science Reproduction in Animals MCQs
Chapter 10 Reaching the Age of Adolescence
CBSE Class 8 Science Reaching The Age of Adolescence MCQs
Chapter 11 Force and Pressure
CBSE Class 8 Science Force and Pressure MCQs
Chapter 14 Chemical Effects of Electric Current
CBSE Class 8 Science Chemical Effect of Electric Current MCQs
Chapter 15 Some Natural Phenomena
CBSE Class 8 Science Some Natural Phenomena MCQs
Chapter 17 Stars and The Solar System
CBSE Class 8 Science Stars and Solar System MCQs
Chapter 18 Pollution of Air and Water
CBSE Class 8 Science Pollution of Air and Water MCQs
More MCQ Questions Class 8 Science
CBSE Class 8 Science MCQs Bank

MCQs for Science CBSE Class 8 NSO Olympiad

Expert teachers of studiestoday have referred to NCERT book for Class 8 Science to develop the Science Class 8 MCQs. If you download MCQs with answers for the above chapter daily, you will get higher and better marks in Class 8 test and exams in the current year as you will be able to have stronger understanding of all concepts. Daily Multiple Choice Questions practice of Science and its study material will help students to have stronger understanding of all concepts and also make them expert on all critical topics. After solving the questions given in the MCQs which have been developed as per latest course books also refer to the NCERT solutions for Class 8 Science designed by our teachers

NSO Olympiad MCQs Science CBSE Class 8

All MCQs given above for Class 8 Science have been made as per the latest syllabus and books issued for the current academic year. The students of Class 8 can refer to the answers which have been also provided by our teachers for all MCQs of Science so that you are able to solve the questions and then compare your answers with the solutions provided by us. We have also provided lot of MCQ questions for Class 8 Science so that you can solve questions relating to all topics given in each chapter. All study material for Class 8 Science students have been given on studiestoday.

NSO Olympiad CBSE Class 8 MCQs Science

Regular MCQs practice helps to gain more practice in solving questions to obtain a more comprehensive understanding of NSO Olympiad concepts. MCQs play an important role in developing understanding of NSO Olympiad in CBSE Class 8. Students can download and save or print all the MCQs, printable assignments, practice sheets of the above chapter in Class 8 Science in Pdf format from studiestoday. You can print or read them online on your computer or mobile or any other device. After solving these you should also refer to Class 8 Science MCQ Test for the same chapter

CBSE MCQs Science Class 8 NSO Olympiad

CBSE Class 8 Science best textbooks have been used for writing the problems given in the above MCQs. If you have tests coming up then you should revise all concepts relating to NSO Olympiad and then take out print of the above MCQs and attempt all problems. We have also provided a lot of other MCQs for Class 8 Science which you can use to further make yourself better in Science

Where can I download latest CBSE MCQs for Class 8 Science NSO Olympiad

You can download the CBSE MCQs for Class 8 Science NSO Olympiad for latest session from StudiesToday.com

Can I download the MCQs of NSO Olympiad Class 8 Science in Pdf

Yes, you can click on the links above and download topic wise MCQs Questions PDFs for NSO Olympiad Class 8 for Science

Are the Class 8 Science NSO Olympiad MCQs available for the latest session

Yes, the MCQs issued by CBSE for Class 8 Science NSO Olympiad have been made available here for latest academic session

How can I download the NSO Olympiad Class 8 Science MCQs

You can easily access the links above and download the NSO Olympiad Class 8 MCQs Science for each topic

Is there any charge for the MCQs with answers for Class 8 Science NSO Olympiad

There is no charge for the MCQs and their answers for Class 8 CBSE Science NSO Olympiad you can download everything free

How can I improve my MCQs in Class 8 Science NSO Olympiad

Regular revision of MCQs given on studiestoday for Class 8 subject Science NSO Olympiad can help you to score better marks in exams

What are MCQs for Class 8 Science NSO Olympiad

Multiple Choice Questions (MCQs) for NSO Olympiad Class 8 Science are objective-based questions which provide multiple answer options, and students are required to choose the correct answer from the given choices.

Why are NSO Olympiad important for Class 8 students?

Learning NSO Olympiad based MCQs will help students improve their overall understanding of important concepts and topics and help to score well in Class 8 Science exams.

How can I practice NSO Olympiad for CBSE Class 8?

You can practice NSO Olympiad for CBSE Class 8 through worksheets, textbooks and online quizzes provided by studiestoday.com.

Where can I find CBSE Class 8 Science NSO Olympiad MCQs online?

You can find CBSE Class 8 Science NSO Olympiad MCQs on educational websites like studiestoday.com, online tutoring platforms, and in sample question papers provided on this website.

How can I prepare for NSO Olympiad Class 8 MCQs?

To prepare for NSO Olympiad MCQs, refer to the concepts links provided by our teachers and download sample papers for free.

Are there any online resources for CBSE Class 8 Science NSO Olympiad?

Yes, there are many online resources that we have provided on studiestoday.com available such as practice worksheets, question papers, and online tests for learning MCQs for Class 8 Science NSO Olympiad

Can I find CBSE Class 8 Science NSO Olympiad practice worksheets online?

Yes, you can find printable NSO Olympiad worksheets for CBSE Class 8 Science on studiestoday.com.

How can I get more free MCQs with answers for CBSE Class 8 Science NSO Olympiad MCQs?

We have provided full database of free multiple choice questions with answers on studiestoday.com for CBSE Class 8 Science NSO Olympiad