CBSE Class 3 Science NSO Olympiad MCQs with Answers Set R

LOGICAL REASONING

Question. Which of the following options will complete the pattern in Fig. (X)?

Answer : B

Question. Study the given arrangement

Box _______ is third to the right of box S.
A. V
B. P
C. W
D. U
Answer : A

Question. Each letter in the figure is connected to another letter by a straight line. In how many different ways can you form the word 'TIGER'?

A. 4
B. 5
C. 6
D. 7
Answer : C

4. Select the odd one out.

Answer : D

Question. Priya is taller than Sneha but shorter than Parul. Sakshi is the shortest. Who among the following is the tallest?
A. Priya
B. Sakshi
C. Parul
D. Sneha
Answer : C

SCIENCE

Question. Which of the following is the correct food pyramid?

Answer : A

Question. The given picture shows the beak of a bird. Which of the following is most likely the food of this bird?

A. Fish
B. Grains
C. Nectar
D. Nuts
Answer : C

Question. Select the odd one out among the following.
A. Jute
B. Cotton
C. Silk
D. Nylon
Answer : D

Question. Study the given relationship between plants. Which of the following plants can be placed at X?
Radish : Coconut :: Turnip : X
A. Almond
B. Carrot
C. Turmeric
D. Spinach
Answer : A

Question. Select the option which on unscrambling gives the term used for the supporting framework of our body.
A. NKEOLSET
B. USEMLCS
C. TNJSOI
D. SBENO
Answer : A

Question. Reeta classified some food items in three groups, as shown below.

Which of these food items has she placed incorrectl y?
A. Sweet lime and Spinach
B. Orange and Fish
C. Sweet lime and Sugar
D. Bread and Eggs
Answer : C

Question. The house as shown in the diagram is built in a place where_______.
A. Climatic conditions are very cold
B. Wind blows very fast
C. Heat of the Sun is extreme
D. It rains heavily
Answer : D

Question. What do a bat and a hippopotamus have in common?

A. Both of them eat only meat.
B. Both of them lay eggs.
C. Both of them give birth to young ones.
D. Both of them live in water.
Answer : C

Question. Ashu’s pet was hit by a car on road and got badly injured. After filling in the missing letters, which of the following options will give name of the professional, he should take his pet to?

A. C_rp _n_ _r
B. Po_ic _ _a_
C. T_il _r
D. V_te _in _ _ia _
Answer : D

Question. Rita could not have babies. There is a problem in her _______.
A. Respiratory system
B. Circulatory system
C. Reproductive system
D. Digestive system
Answer : C

Question. In a park, Richa observed a merry-go-round, in which all the horses spun around a center pole. She assumed that the pole of merry-go-round acts just like the Earth’s _______.
A. North Pole
B. South Pole
C. Axis
D. Equator
Answer : C

Question. Select the activity which requires a force different from the other three activities.
A. Spinning a coin
B. Turning the door knob
C. Fitting a screw into the board
D. Pumping air into a football
Answer : D

Question. Which of the following statements are correct?
1. A force can change the direction of a moving object.
2. Echoes can be used to find the depth of the sea.
3. Sound travels faster than light.
4. Gravity is a force that pushes everything away from the Earth.
A. 1 and 4 only
B. 2 and 3 only
C. 1 and 2 only
D. 3 and 4 only
Answer : C

Direction : Refer to the given symbols and select the correct option for the questions a and b.

Question a. Ahmed and his friends were walking down a street to reach their school. Suddenly one of his friends felt thirsty. Which of the given symbols will help Ahmed to locate water for his friend?
A. g
B. f
C. d
D. e
Answer : A

Question b. Rahul is visiting his friend who is admitted in a hospital. On his way to hospital, he gets confused to take which route. He then studies the map. Which of these symbols on map will help him in locating the hospital?
A. d
B. f
C. g
D. e
Answer : A

Question. Select the correct headings for X and Y given in the following Venn diagram.

              X                            Y
A. Herbivores              Carnivores
B. Wild animals           Domestic animals
C. Producers               Consumers
D. Land animals          Water animals
Answer : A

Question. Read the following statements made by Ravi about a glass box containing some coloured beads.
1. The box is cool to touch and rattles when shaken.
2. The box is heavy.
3. The box can be easily broken.
4. Coloured beads can be seen in the box even when it is closed.
Which of the above statements indicate that the box is made of glass?
A. 1 and 3 only
B. 2 and 3 only
C. 3 and 4 only
D. 1 and 4 only
Answer : C

Question. Amit likes to eat food from roadside vendors. He should not eat such food everyday, because ________.

A. This will eventually lead to health problems
B. Such food lacks nutrient values
C. Such food is a rich source of protein
D. Both A and B
Answer : D

Question. Namit was asked to pair one outdoor and one indoor activity. He made four pairs, but he made one incorrect pair. Select the incorrect pair.
A. Ludo and Carrom
B. Badminton and Table tennis
C. Football and Chess
D. Both A and B
Answer : D

Question. Which of the following objects is incorrectl y paired with the materials it is made of/from?
       Objects                         Materials
A. Spectacles                 Plastic and metal
B. Hammer                    Metal and wood
C. Drilling machine        Plastic and metal
D. Watch                       Wood and rubber
Answer : D

Question. When you swim
1. Do not play rough games in the pool.
2. Always swim in the deep end.
3. Always take a rubber tube with you.
4. Avoid swimming near the grown-ups.
Which of the safety rules written on the board is/are Incorrect ?
A. 1 and 3 only
B. 4 only
C. 2 and 4 only
D. 1, 2 and 3 only
Answer : C

Question. I am a rock but I can float on water. Y ou can find me in your bathroom. Who am I?
A. Coal
B. Marble
C. Pumice
D. Slate
Answer : C

Question. The given picture shows Smriti's shadow at some time of the day. Which of the following activities she can most likely do at this time?

A. Have dinner
B. Play in the park
C. Go to the school
D. Have lunch
Answer : C

Question. ___________ is the hottest time of the day, because Sun's rays are ________.
A. Morning, Slanting
B. Noon, Slanting
C. Morning, Straight
D. Noon, Straight
Answer : D

Question. Which property of water causes the phenomenon as shown in the given figure?

A. Water solidifies when cooled down.
B. Water expands on freezing.
C. Water takes up space.
D. Water has volume.
Answer : B

ACHIEVERS SECTION

Direction : Refer to the given diagram and table to answer the questions a and b.
Four thin sheets of materials W, X, Y and Z of similar sizes, were weighed individually before  they were put into four beakers containing equal amounts of water. After 15 minutes, each sheet was weighed again. Their masses were recorded in the table.

Question a. Which material absorbs the most amount of water?
A. W
B. X
C. Y
D. Z
Answer : A

Question b. Which material is the most suitable for making a tent?
A. W
B. X
C. Y
D. Z
Answer : B

Question. A torchlight was placed at point P and the length of the shadow of pen on the screen was measured to be 12 cm.

The experiment was repeated with the pen shifted to point Q as indicated in the diagram above. What is most likely the length of the shadow formed this time?
A. 0 cm
B. 10 cm
C. 12 cm
D. 14 cm
Answer : D

Question. Study the given flow chart. Identify correct pair of examples of plants P, Q, R and S.

A. P - Mustard, Q - Banana
B. R - Coconut, S - Carrot
C. P - Rose, S - Mango
D. Q - Neem, R - Coconut
Answer : D

Question. Ritika conducted two experiments over two soil samples and tabulated the result as shown here.
Identify the soils from results and select the correct option.

          P                        Q
A. Sandy soil            Loamy soil
B. Loamy soil           Sandy soil
C. Clayey soil           Loamy soil
D. Loamy soil           Clayey soil
Answer : D