Explore topic-wise MCQs in 3rd Class.

This section includes 1249 Mcqs, each offering curated multiple-choice questions to sharpen your 3rd Class knowledge and support exam preparation. Choose a topic below to get started.

501.

Which part of the body is not used by the respiratory system to work?

A. Mouth                         
B. Nose         
C. Small intestine
D. Diaphragm
Answer» D. Diaphragm
502.

Tongue helps us in:

A. seeing                 
B. hearing
C. tastily                    
D. touching
Answer» D. touching
503.

Which of the following organs helps us in the sense of sight?

A.           
B.         
C.                 
D.         
Answer» B.         
504.

Each bone has a particular job. What is the job of the skull?

A. Pumps blood to the brain             
B. Tells the brain what to do
C. Helps the body to make decisions     
D. Protects the brain
Answer» E.
505.

Match the following.1. KidneysA. Air2. HeartB. Food3. LungsC. Blood4. StomachD. Wastes

A. 1-A, 2-C, 2-D, 4-D
B. 1-D, 2-C, 3-A, 4-B  
C. 1-C, 2-D, 3-B, 4-A
D. 1-D, 2-C, 3-B, 4-A
Answer» C. 1-C, 2-D, 3-B, 4-A
506.

The system which forms the framework for the body is _______.

A. circulatory system                  
B. excretory system
C. reproductive system                 
D. skeletal system
Answer» E.
507.

The function of hair inside our nose is:

A.  to make it beautiful
B.  to not to let dirt particles enter our lungs  
C.  to not to let too much air go inside
D.  to keep our lungs cold
Answer» C.  to not to let too much air go inside
508.

Which of the following organs is NOT used during digestion?

A. pancreas         
B. stomach       
C. lungs               
D. liver
Answer» D. liver
509.

In the previous chapter we have studied that plants take in carbon dioxide and give out oxygen in the process of photosynthesis- In animals, during respiration, oxygen is taken in and carbon dioxide is given out. Which of the following organ, is a part of that respiratory system?

A. Lungs                    
B. Stomach
C. Heart                   
D. Brain
Answer» B. Stomach
510.

Vijay got stomachache. Which of the following could be a reason?

A.  He ate food at seven in the evening
B.  He drank water after eating food
C.  He did not chew the food properly  
D.  He did not wash his hands properly after eating food
Answer» D.  He did not wash his hands properly after eating food
511.

Digested food is absorbed by _______.

A. mouth                         
B. heart          
C. water                          
D. blood
Answer» E.
512.

Our stomach expands when the food enters and contracts when it goes out. Thus the stomach can expand and contract. This is possible because our stomach is made of:

A.  bones                 
B.  muscles  
C.  blood  
D.  iron
Answer» C.  blood  
513.

Which of the following is required by our body?

A. Oxygen    
B. Urine          
C. Sweat                         
D. Carbon-dioxide
Answer» B. Urine          
514.

Above diagram represents an organ which taken in oxygen and gives out carbon dioxide. Name the organ.

A. small intestine
B. kidneys
C. lungs     
D. stomach
Answer» D. stomach
515.

Which organ of our body belongs to both the respiratory and the excretory system?

A. Lungs    
B. Skin           
C. Kidneys                       
D. Intestine
Answer» B. Skin           
516.

Kidneys are located in the:

A. cheat   
B. abdomen  
C. hands  
D. left side of body
Answer» C. hands  
517.

We have _____kidneys.

A.  one                                      
B.  two  
C.  three                   
D.  four
Answer» C.  three                   
518.

Which one of the following organs can be compared with the pump?

A. Heart      
B. Lungs          
C. Kidney                        
D. Brain
Answer» B. Lungs          
519.

Our heart has ____chambers.

A. lone                     
B. two
C. three   
D. four  
Answer» E.
520.

The organ in the diagram helps us in _______.

A. seeing                         
B. hearing
C. smelling                       
D. eating              
Answer» C. smelling                       
521.

The organ in the diagram helps us in:

A.  seeing                                 
B.  hearing
C.  smelling               
D.  Dealing
Answer» D.  Dealing
522.

This type of resource is obtained from non-living things.

A. Biotic                           
B. Abiotic
C. Both [a] and [b]  
D.       Either [a] or [b]
E. None of these
Answer» C. Both [a] and [b]  
523.

Which abiotic component is used by plants for making food?

A. Water                           
B. Carbon dioxide
C. Sunlight         
D.        All the above
E. None of these
Answer» E. None of these
524.

Which one of the following is very beautiful and expensive?

A. Graphite                       
B. Ruby
C. Talc               
D.        China clay
E. None of these
Answer» C. Talc               
525.

It is a hard rock, used to make floors.

A. Talcum                         
B. Gemstone
C. Granite  
D.        All the above
E. None of these
Answer» D.        All the above
526.

Talcum powder is made up of which mineral?

A. Ruby                            
B. Tungsten
C. Talc     
D.        Gypsum
E. None of these
Answer» D.        Gypsum
527.

This mineral is used in electric bulbs.

A. Gypsum                       
B. Calcium
C. Tungsten  
D.        Graphite
E. None of these
Answer» D.        Graphite
528.

A pencil lead is made up of this mineral.

A. Graphite           
B. Diamond
C. Silica                
D.        Gypsum
E. None of these
Answer» B. Diamond
529.

I am the hardest mineral and used in jewellery. Who am I?

A. Gold                            
B. Silver
C. Diamond    
D.        Aluminium
E. None of these
Answer» D.        Aluminium
530.

       ____ is known as a universal solvent.

A. Oil                               
B. Water
C. Milk                 
D.        Kerosene
E. None of these
Answer» C. Milk                 
531.

Ruby and Sapphire are examples of:

A. Gold                            
B. Silver
C. Gemstones  
D.        Quartz
E. None of these
Answer» D.        Quartz
532.

Chalk used in classroom is made of:

A. Talc  
B. Quartz
C. Graphite       
D.        Gypsum
E. None of these
Answer» B. Quartz
533.

All rocks are made up of:

A. Metals             
B. Salt
C. Iron                     
D.      Minerals
E. None of these
Answer» E. None of these
534.

Full form of LPG is:

A. Liquefied Pressure Gas
B. Liquefied Petroleum Gas
C. Low Polluted Gas
D. Light Petroleum Gas
E. None of these
Answer» C. Low Polluted Gas
535.

Natural resources are mainly classified into how many groups?

A. 3                                 
B. 4
C. 2  
D.        5
E. None of these
Answer» D.        5
536.

Which type of resource the wind is?

A. Non-renewable               
B. Man-made
C. Biotic              
D.        Renewable
E. None of these
Answer» E. None of these
537.

____energy is obtained from sun.

A. Wind                            
B. Solar
C. Coal                 
D.        Water
E. None of these     
Answer» C. Coal                 
538.

We provide oxygen to the atmosphere. Who are we?

A. Animals                        
B. Fuels
C. Forests       
D.        Oceans
E. None of these
Answer» D.        Oceans
539.

Petrol is ___ resource.

A. Renewable        
B. Non-renewable
C. Biotic                           
D. Not a natural
E. None of these 
Answer» C. Biotic                           
540.

  Wind is utilised as a _______ source of energy.

A. Non-renewable   
B. Renewable
C. Artificial        
D.        All the above
E. None of these
Answer» C. Artificial        
541.

Which one of the following is not used as a fuel?

A. Kerosene                       
B. Petrol
C. Water  
D.        Diesel
E. None of these     
Answer» D.        Diesel
542.

Which one of the following is biotic resource?

A. Soil                              
B. Water
C. Plant
D.        Land
E. None of these
Answer» D.        Land
543.

I am a natural resource and you can use me again and again. Who am I?

A. Renewable resource
B. Non-renewable resource
C. Both [a] and [b]
D. Either [a] or [b]
E. None of these
Answer» B. Non-renewable resource
544.

Abiotic resources are:

A. Plants                           
B. Animals
C. Minerals
D.        Fish
E. None of these
Answer» D.        Fish
545.

Which among the following is not a natural resource?

A. Air                               
B. Sun
C. Wood               
D.        Water
E. None of these
Answer» F.
546.

We can produce electricity by the help of this natural resource.

A. Soil                  
B. Wind
C. Water            
D.        Both [b] and [c]
E. None of these
Answer» E. None of these
547.

In science, push or pull is called a ______.

A. force               
B. acceleration   
C. motion                        
D. Inertia
Answer» B. acceleration   
548.

The object falls down on the ground due to ______.

A. magnets                            
B. it is supposed to come down
C. free-fall                            
D. gravitational force
Answer» E.
549.

When _____ is applied, a body sets in motion.

A. force                           
B. mass          
C. matter                         
D. Speed
Answer» B. mass          
550.

A body is said to be in uniform motion if it covers ________distance in ______intervals of time.

A. equal, equal                
B. unequal, unequal
C. equal, unequal            
D. unequal, equal
Answer» B. unequal, unequal