CBSE Class 3 Science NSO Olympiad MCQs with Answers Set N

MENTAL ABILITY

Question. If

A. 12
B. 6
C. 18
D. 10
Answer : A

Question. What fraction of smileys are green smileys?

A. 1/8
B. 1/7
C. 2/7
D. 3/8
Answer : B

Question. What is the missing figure in the given figure pattern?

Answer : B

Question. Which of the following clocks shows the time 2 hrs 20 minutes after 9 : 40 am?

Answer : D

Question. Which of the following options shows 332 more than the given abacus?

A. Four hundred thirty two
B. Eight hundred seventy four
C. Seven hundred sixty four
D. Six hundred thirty two
Answer : C

Question. If ⭐ stands for 40 people, then 6 ⭐ 's will stand for _____ people
A. 240
B. 60
C. 400
D. 100
Answer : A

Question. Which of the following options shows the correct mirror image of Fig. (X)?

Answer : D

Question. If

Answer : C

Question. Find the values of P and Q respectively.

A. 4 and 1
B. 4 and 7
C. 7 and 4
D. 2 and 4
Answer : A

Question. In which of the following figures, shape (X) is embedded as one of its part?

Answer : C

SCIENCE

Question. The given figures show two groups ('M' and 'N') of animals.
Select the correct option regarding the categorization of the given groups.

           M                                  N
A. Wild animals             Domestic animals
B. Give us fibre             Carry load
C. Give us meat            Give us leather
D. Give us dung            Give us milk

Answer : B

Question. Which of the following diagrams correctly shows the movement of water in the plant?

Answer : A

Question. Study the given diagram and select the inc orrect match regarding activity that requires X, Y or Z.

A. Watching a television programme – Z
B. Reading a book – Y Z
C. Listening the radio – X
D. None of these
Answer : D

Question. Which of these will take least time to get dry?
A. Silk saree
B. Jeans
C. Cotton handkerchief
D. Woollen skirt
Answer : C

Question. The effigies of two persons are burnt every year along with R avana on Dussehra. Who are those two persons and what are their relations with R avana ?
A. Kumbhkaran - brother, Meghnath - son
B. Meghnath - brother, Kumbhkaran - son
C. Vibhishan and Kumbhkaran - both brothers
D. Kumbhkaran and Meghnath - both brothers
Answer : A

Question. Supriya's daughter is niece of Shashank. Shashank is brother-in-law of R ohit.
Read the above given relationship and select the correct option regarding them.
A. Supriya is sister of Shashank.
B. Rohit is the brother of Shashank's wife.
C. Supriya's husband is brother-in-law of Shashank.
D. All of these
Answer : D

Question. Refer the given diagram of a part of the solar system.
Neil Armstrong was the first to step on ______.

A. Q
B. S
C. R
D. P
Answer : D

Question. Names of some professionals are hidden in the given word grid.
(a) How many of them belongs to same profession?
(b) How many of them requires least educational qualification for his occupation?

      (a)             (b)
A. Two          Two
B. One          Three
C. Two          One
D. Two          Three
Answer : C

Question. Read the given statements regarding first aid tips and select the inc orrect statement(s).
(1) If a person is bleeding severely, tie loosely a bandage around the wound.
(2) If a person faints, do not crowd him.
(3) If a person gets burnt, put the burnt part under the cold water.
(4) In a case of cuts or small wounds, wipe them clean and apply antiseptic lotion over them.
A. 1 and 3
B. 1 only
C. 1, 2 and 4
D. 3 only
Answer : B

Question. Select the correct match.

Answer : C

Question. Shalini conducts an experiment with four same type of plants of different heights. She measures the amount of water each plant absorbs everyday and presents the information in a bar chart as shown.

At the end of the experiment she concludes that 'the tallest plant absorbed the most water' Identify the tallest plant.
A. S
B. Q
C. R
D. P
Answer : C

Question. Study the given diagram and select the correct option regarding it.

A. X is penguin
B. Z is crane
C. Y is duck
D. Both A and C
Answer : D

Question. Study the 4 set-ups below. Which two of them can be used to show that water expands when heated and contracts when cooled?

A. P and Q
B. Q and S
C. P and S
D. R and S
Answer : B

Question. Read the given passage.
Food contains substances which provide energy for survival and growth of our body.
These substances are called nutrients. Nutrients are grouped into carbohydrates, fats proteins, 'L' and 'M'. R oughage and 'N' also form a part of our food.
'L', 'M' and 'N' are found in rich-amount in which of these?
A. Cereals and O ats
B. Fruits and vegetables
C. Milk and Butter
D. Eggs and meat
Answer : B

Question. Which organ system is mainly involved for the activity as shown in the figure?

A. Digestive system
B. Excretory system
C. Respiratory system
D. All of these
Answer : C

Question. The region of the Earth near the __________ receives almost the same amount of sunlight through out the year. This region always remains hot and has days and night of equal duration. O n the other hand the __________ receive(s) sunlight only for six months and remain(s) dark for the next six months.
Select the correct sequence of words to fill the blanks in the above given passage.
A. Northern hemisphere, Southern hemisphere
B. Southern hemisphere, Northern hemisphere
C. Equator, Poles
D. Axis, Equator
Answer : C

Question. Which among these will be least useful to send an immediate message?
A. Post card
B. E-mail
C. Short Message Service
D. Fax
Answer : A

Question. Which among these would be the best material to use, while making the handle of a tea kettle?
A. Aluminium
B. Wood
C. Glass
D. Iron
Answer : B

Question. The given diagram shows 2 shadows formed by a tree and a 3-metre tall lamp post. If the shadow of the tree is 15 metres long and that of the lamp post is 4.5 metres long, what is the height of the tree?

A. 10.0 m
B. 10.5 m
C. 13.5 m
D. 22.5 m
Answer : A

Question. Refer the given food web. How many food chains are there in this food web?

A. Three
B. Four
C. Five
D. Six
Answer : D

ACHIEVERS SECTION

Question. Refer the given figure showing different types of bird's feet and answer the questions that follow.
(a) Which of these bird feet is suitable for climbing and clinging to the bark of trees?
(b) Which of these bird feet has talons?

    (a)      (b)
A. d         e
B. g         d
C. d         g
D. g         f
Answer : D

Question. The women 'X' and 'Y' in the given picture have to overcome two kinds of forces 'M' and 'N' respectively to carry their groceries.
read the given statements about forces 'M' and 'N'
Select the INCorrECT statement(s) regarding the forces ' M ' and ' N ' respectively.

Force 'M'            Force 'N
A. a only             a and c
B. b and c           b only
C. b and c           a and c
D. b only             a and b
Answer : B

Question. 'X' vehicles are not owned by us. We have to pay to travel by them.
(a) Select an example of 'X' vehicles.
(b) Which of the 'X' vehicles can run on rail tracks laid on road?
         (a)                      (b)
A. Motorcycle         Metro
B. Aeroplane           Tram
C. Bicycle               Cable car
D. Ship                   Scooter
Answer : B

Question. The flow chart below shows the characteristics of few substances.

Answer : B

Question. A cup was placed under a dripping tap. After a while, a puddle of water was found around the cup.
Which of the following statements is true for the above activity?
(1) Water has a definite shape
(2) Water occupies space.
(3) Water has a definite volume.
A. 1 and 2
B. 2 and 3
C. 1 and 3
D. 1, 2 and 3
Answer : B