CBSE Class 3 Science NSO Olympiad MCQs with Answers Set F

Question. Manish is trying to dissolve some material in the water but it is not getting dissolved.
What it could be?
A Sugar cube
B Chalk powder
C Glucose powder
D Rock salt
Answer : B

Question. ‘R’ is the fifth planet from the Sun. Which of the following is correct regarding R?
A It is known as red planet.
B It has lowest number of Moons.
C It is the largest planet .
D It has a ring around itself.
Answer : C

Question. Study the given relationship and select the option that correctly identifies X.

Answer : C

Question. Which of the following could be most appropriate headings for column A and column B respectively?

A Herbivorous animals and Carnivorous animals
B Domestic animals and Wild animals
C Carnivorous animals and Omnivorous animals
D Terrestrial animals and Aquatic animals
Answer : B

Question. Study the given flow chart.
Select the INCORRECT statement regarding P-S.

A P could breathe through spiracles whereas Q could breathe through lungs.
B R could be climbing bird whereas S could be perching bird.
C Q could possess webbed feet whereas S could possess talons.
D P could use its beak to sew leaves with material like thread and wool whereas R weaves the grass in and out rapidly.
Answer : D

Question. Refer to the given diagram and select the correct option regarding X, Y and Z.

A X could be onion, Y could be turnip and Z could be mustard.
B X could be bean, Y could be balsam and Z could be rice.
C X could be balsam, Y could be onion whereas Z could be bean.
D X could be bean, Y could be mustard and Z could be grass.
Answer : A

Question. Study the given food web carefully. An increase in frog population is likely to cause

1. Increase in the grasshopper population
2. Decrease in the lizard population
3. Increase in snake population
A 1 only
B 2 only
C 2 and 3 only
D 1 and 3 only
Answer : C

Question. Which of the following feet could most likely be associated with a bird having strainer type of beak?

Answer : B

Question. Which of the following could be X, Y and Z?

Answer : C

Question. Which of the following is correct regarding the characteristics of oxygen?

Answer : D

Question. Wool required for making woollen socks, gloves, jackets, etc. is obtained from

Answer : B

Question. Select the option which consists of land, air and water transport respectively.
A Bus, Car, Steamer
B Truck, Aeroplane, Boat
C Helicopter, Jet, Ship
D Scooter, Train, Submarine
Answer : B

Question. Study the given flow chart and select the correct option.

A  P could be almond oil whereas Q could be water vapour.
B Q could be water vapour whereas S could be water.
C R could be wood whereas S could be glass.
D P could be glass whereas Q could be mustard oil.
Answer : B

Question. X can be modified to store food for the plant. It carries food, water and mineral salts to all parts of the plant. It also holds the leaves up so that they can get sunlight for making food. Which of the following could be an example of part X?
A  Apple
B Turnip
C Sugarcane
D Broccoli
Answer : C

Question. Select the option that correctly satisfies the same relationship based on their feeding habit.

A Lion : Cow
B Rabbit : Frog
C Cat : Mosquito
D Dog : Buffalo
Answer : B

Question. Which of the following best shows the revolutions of Earth and Moon around Sun and Earth respectively?

Answer : A

Question. Which of these houses would you find in flood prone areas?

Answer : A

Question. A child was playing outside his house. He could tell that there was an apple pie in the kitchen. Which sense did the child use to know that an apple pie was being made?
A Sense of taste
B Sense of hearing
C Sense of touch
D Sense of smell
Answer : D

Question. During a thunderstorm, we see lighting before we hear thunder because ________.
A Light travels in a straight path while sound does not
B Light travels faster than sound
C Light gets reflected back from clouds while sound does not
D Light travels through vacuum while sound cannot
Answer : B

Question. The states of matter in which water is present at 35°C and -10°C respectively are _______.
A Solid and liquid
B Liquid and solid
C Gas and solid
D Liquid and gas
Answer : B

Question. X is connected to all the other parts of the body through the Y which contains thin, threadlike tubes that run all around the body called Z. Select the option which correctly identifies X, Y and Z.

Answer : C

Question. Which of the following forces is/are able to affect objects from a distance?
1. Gravitational pull
2. Magnetic force
3. Frictional force
A 1 only
B 3 only
C 1 and 2 only
D 1, 2, and 3
Answer : C

Question. During the process of evaporation __________ state changes to _________ state.
A Gas, liquid
B Liquid, gas
C Solid, liquid
D Gas, solid
Answer : B

Question. Read the given statement and select the correct option regarding X and Y.
X has fixed volume, no definite shape and does not cast a shadow whereas Y has fixed volume, definite shape and casts a shadow.
A X could be milk whereas Y could be glass.
B X could be water whereas Y could be wood.
C X could be mustard oil whereas Y could be iron sheet.
D X could be wood whereas Y could be water.
Answer : B

Question. Select the option that correctly fills the boxes X, Y, Z in the given flow chart.

A X - Animal driven land transport, Y - Bullock cart, Z - Tonga
B X - Air transport, Y - Helicopter, Z - Aeroplane
C X - Water transport, Y - Ferry, Z - Ship
D X - Land transport, Y - Bus, Z - Car
Answer : D

Question. Which of the following is correct regarding fourth level in a food chain?
1. Can be a tree
2. Can never be a tree
3. Can be a herbivorous animal
4. Can never be a herbivorous animal
5. Can be a carnivorous animal
A 1, 3 and 5 only
B 2, 4 and 5 only
C 1, 4 and 5 only
D 2, 3 and 5 only
Answer : B

Question. Select the INCORRECT statement regarding air.
A  Air is a mixture of many gases like nitrogen (78%) , oxygen (21%) and others including carbon dioxide (1%) .
B Carbon dioxide is the gas that we breathe in.
C The oxygen in the air is required for burning things.
D When a balloon is overfilled with air, the air pressure inside becomes greater than the air pressure outside and it bursts.
Answer : B

Question. Study the given flow chart and select the option which correctly identifies any three probable animals among a, b, c, d, e and f.
A a - Pigeon, b - Human, d - Goldfish
B d - Pigeon, c - Cockroach, e - Human
C b - Bat, e - Ostrich, f - Cockroach
D a - Bat, e - Ostrich, f - Goldfish
Answer : D

Question. Which of the following lists the same type of modes of transport?
A Bus, Cycle, Scooter, Car, Aeroplane
B Aeroplane, Helicopter, Hot air balloon, Ship
C Ship, Boat, Submarine, Ferry
D Train, Aeroplane, Tram, Ship, Boat
Answer : C

Question. The body parts which are present in pair in our body are
A Lung and Heart
B Heart and Finger
C Finger and Gall bladder
D Kidney and Lung.
Answer : D

Achievers' Section

Question. Rita had to make four pairs each having one solid, one liquid and one gas respectively, but she made a mistake while making one of the pairs. Select the INCORRECT pair.
A Tomato, Milk, Oxygen
B Gold, Syrup, Kerosene
C Tomato, Juice, Nitrogen
D Silver, Honey, Milk
Answer : D

Question. Which of the following statements are correct?
(i) Safety means being careful and avoiding accidents only while walking on the road.
(ii) There are rules and signs for safety of people on the ship.
(iii) We must use footpath for walking and cyclists must keep to their left.
(iv) We must cross the road as we like anywhere and everywhere.
A (i), (ii), and (iii)
B (ii) and (iii)
C (iii) and (iv)
D (i) and (iii)
Answer : B

Question. In the given cycle, fill in the missing phases of Moon.

Answer : B

Question. The girl in the given picture is using trolley to overcome _________.

A The force of attraction between the Earth and the girl
B The force of attraction between the Earth and the trolley
C The force of friction between the trolley and the ground
D The force of friction between the girl and the ground
Answer : C

Question. Read the given conversation.

Which of the following statements is correct regarding X, Y and Z?
A X could be ruby and Z could be tungsten.
B Y could be granite and Z could be quartz.
C X could be diamond and Y could be silica.
D Y could be graphite and Z could be tungsten. 
Answer : D