CBSE Class 3 Science NSO Olympiad MCQs with Answers Set V

LOGICAL REASONING

Question. Find the mirror image of the given figure.

Answer : A

Question. Which of the following words CANNOT be formed from the letters of the given word?
INTRODUCTION
A. ROUND
B. IDIOT
C. DRAIN
D. COURT
Answer : C

Question. Select the correct option.

A. Number of circles – 4
B. Number of squares – 5
C. Number of triangles – 10
D. Number of rectangles – 2
Answer : B

Question. If

Answer : D

Question. Find the missing figures.

Answer : C

SCIENCE

Question. Select the option which contains only indoor activities.
A. Ludo, carrom, football
B. Ludo, chess, billiards
C. Polo, cricket, football
D. Carrom, chess, horse riding
Answer : B

Question. We can have a protein rich diet if we increase the amount of _________ in our diet.

Answer : D

Question. Rock X is very hard to break while rock Y can be easily powdered by crushing with hands.
Select the correct option regarding X and Y.
         X                    Y
A. Granite             Chalk
B. Pumice             Granite
C. Chalk               Slate
D. Sandstone        Marble
Answer : A

Question. ______ eats its food in the same way as the animal shown here.

Answer : A

Question. Which of the following organisms is killed to obtain fibre from it?

Answer : D

Question. Select the correct option regarding the given picture map.

A. Hospital is at North to the school.
B. School is at North-East to the post office.
C. Ruchira’s house is at North to the hospital.
D. Shop is eastwards to the school.
Answer : B

Question. You may use a _______ to cross a road.
A. Zebra crossing
B. Subway
C. Foot-overbridge
D. Any of these
Answer : D

Question. An object’s shadow is the shortest at __________.
A. Morning
B. Evening
C. Noon
D. Night
Answer : C

Question. A nomad lives in a ______.

Answer : B

Question. Refer to the statements given by three children. Find out the one who gave an INCORRECT statement.

Answer : D

Question. Nehal got hurt as she slipped on a banana peel. She did NOT use her sense of _______ very well.
A. Hearing
B. Tasting
C. Seeing
D. None of these
Answer : C

Question. Select the INCORRECT match out of the following.
A. Doctor - Clinic
B. Conductor - Bus stand
C. Air hostess - Airport
D. Goldsmith - Railway station
Answer : D

Question. The object shown here, does not cast a shadow. It is most likely made up of material X. X could be

A. Metal
B. Ceramic
C. Clear plastic sheet
D. Frosted glass.
Answer : C

Question. Modes of transport are of three types : land, water and air. Select the option that includes one example from each type.
A. Glider, rickshaw, bicycle
B. Boat, ship, submarine
C. Bus, boat, helicopter
D. Bus, train, ship
Answer : C

Question. The stem juice of the plant shown here is used to make _________.

A. Rubber
B. Gum
C. Sugar
D. Cooking oil
Answer : C

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

A. X – Rubber, Y – Plastic
B. Z – Wood, X – Cardboard
C. Y – Sponge, X – Rubber
D. Z – Glass, X – Paper
Answer : D

Question. I am a little kid. I will grow up to become a _______.

Answer : A

Question. A rotation of Earth is completed in _____ and causes _______.
A. 24 days, day and night
B. 365 hours, change of season
C. 24 hours, day and night
D. 365 days, change of season
Answer : C

Question. Ravi stepped on a nail and jumped back at once. How did the information travel in his body?
A. Skin → Nerves → Brain
B. Nerves → Spinal cord → Leg muscles → Nerves
C. Brain → Nerves → Spinal cord → Nerves → Leg muscles
D. Skin → Nerves → Spinal cord → Nerves → Leg muscles
Answer : D

Question. Unscramble the letters given in the box to get the name of an animal.
Now, select the correct option regarding this animal.
                           Q I R E S R L U
A. It catches its prey with the help of its long sticky tongue. 
B. It sucks blood of other animals.
C. It wriggles on ground.
D. It eats its food in a similar manner as a hamster.
Answer : D

Question. Which of the following processes involves the change of state from a liquid to a solid?
A. Melting of ice cubes
B. Drying of wet clothes
C. Formation of water vapour
D. None of these
Answer : D

Question. Air we breathe in, enters our body through ______, then it enters first into ______ and then _____. It comes out through ________.
A. Nose, lungs, gullet, nose
B. Gullet, windpipe, lungs, gullet
C. Gullet, lungs, windpipe, nose
D. Nose, windpipe, lungs, nose
Answer : D

Question. Which of the following groups contains only cooking methods?
A. Roasting, boiling and pickling
B. Steaming, grilling and canning
C. Roasting, steaming and grilling
D. Grilling, steaming and pickling
Answer : C

Question. The given foot may belong to a _________.

A. Duck
B. Parrot
C. Hen
D. Eagle
Answer : D

Question. Clothes are made from X which in turn is made from Y . We get Y from Z .
       X                 Y                     Z
A. Fabric         Fibre          Plants only
B. Fibre          Fabric         Animals only
C. Fabric        Fibre          Plants and animals
D. Fibre          Fabric        Plants and animals
Answer : C

ACHIEVERS SECTION

Question. Neetu took equal amount of three types of soil X, Y and Z in three different troughs.
Then, she poured 100 mL of water in each trough. The results obtained after some time are shown below.

Now, select the INCORRECT option regarding this.
A. Soil X is most suitable for making pots.
B. Soil Y is most suitable for making base of an artificial pond.
C. Plants like cactus can grow well in soil Z.
D. Soil X is suitable for growth of most plants.
Answer : A

Question. Refer to given set-up and answer the following questions.
X : What will be the shape of the shadow obtained?
Y : How can we get a triangular shadow?

Answer : B

Question. Refer to the given figure of digestive system and select the INCORRECT option.

A. If P is removed, food will not be churned properly and will not become acidic.
B. If Q is replaced with R, the nutrients will not be absorbed at all in the body.
C. If S is removed, then fat digestion and absorption will not occur properly.
D. Both A and C
Answer : B

Question. Which of the following map symbols should one look for regarding the given situations?
1. One of your friends got badly hurt on the way to an educational trip.
2. You are in some isolated part of a village and feeling thirsty.
3. Your car is running out of petrol.

Answer : A

Question. The given graph shows the temperature change during a food preservation method.
Identify it and select the correct option.

A. This method includes adding excess common salt to food.
B. This method includes adding excess sugar to food.
C. This method includes removing all the moisture from food.
D. None of these
Answer : D