Explore topic-wise MCQs in 6th Class.

This section includes 2267 Mcqs, each offering curated multiple-choice questions to sharpen your 6th Class knowledge and support exam preparation. Choose a topic below to get started.

2001.

Our body weight comprises most of????

A. fats   
B. proteins
C. carbohydrates 
D. potassium
Answer» E.
2002.

A component of food is known as 'body building food'. It is called

A. proteins and is obtained from plant sources
B. proteins and is obtained from animal sources
C. proteins and is obtained both from plant sources and animal sources
D. minerals, and is obtained from both plant sources and animals source
Answer» D. minerals, and is obtained from both plant sources and animals source
2003.

Use of excess water during cooking may cause loss of

A. vitamins and minerals
B. proteins and minerals
C. vitamins and proteins
D. None of these
Answer» C. vitamins and proteins
2004.

John met with an accident and had a fracture. Which test/report clearly gives the fracture details to the doctor?

A.  Blood report     
B.  An X-ray
C.  Muscle test      
D.  Urine report
Answer» C.  Muscle test      
2005.

Which of the following plants do not have stomata? (i) Hydrilla (ii) Water lily (iii) All of these

A. Only (ii) is correct       
B. Both (i) and (iii)
C. Only (i) is incorrect     
D. Only (iii) is correct
Answer» B. Both (i) and (iii)
2006.

Which of the following gases is the component of air?

A.  Hydrogen    
B.      Oxygen
C.      Nitrogen     
D.      All of the above
Answer» E.
2007.

Which of the following is NOT associated with air?

A.  Having a campfire
B.      Flying a paper aeroplane
C.      Blowing out candles on a birthday cake
D.      Sunbathing at the beach
Answer» E.
2008.

Farmers plough their fields before they plant seeds because

A. it loosens the soil and allows the air to enter into the spaces between soil particles
B. the sprouting seed will be able to use the trapped air
C. plants will absorb some air through their roots and also take in water and minerals from the soil
D. All of the above
Answer» E.
2009.

Priya placed two drops of a liquid on cooked rice which turned the rice blue- black. What could be the liquid?

A.  Vegetable oil
B.      Iodine solution
C.      Benedict's solution
D.      Nitrate solution
Answer» C.      Benedict's solution
2010.

Which of the following organ system helps in protecting internal organs and gives support to the body?

A. Digestive system
B. Excretory system
C. Nervous system 
D.        Skeletal system
E. None of these
Answer» E. None of these
2011.

The dissolution of salt in water is a

A. reversible change
B. irreversible change
C. chemical change
D. periodic change
Answer» D. periodic change
2012.

Peeled and unpeeled banana doesn't look same Does that means peeling banana is a chemical change?

A. No, we just separated skin of banana and there is no change in is composition.
B. Yes, through peeling a new product is formed.
C. Yes, both chemical and physical change happen here
D. No, neither chemical nor physical change happen here.      
Answer» B. Yes, through peeling a new product is formed.
2013.

Which among the following is an irreversible change?

A. Melting of ice.
B. Formation of flower from bud.
C. Heating of milk.
D. Kicking a football.
E. None of these
Answer» C. Heating of milk.
2014.

Which of the following is an example of periodic change?

A. Occurrence of earthquake 
B. Heartbeat
C. A car accident
D. Landslide
E. None of these
Answer» C. A car accident
2015.

DIRECTIONS: The questions in this segment consists of two statements, one labelled as ?assertion 4? and the other labelled as ?reason R?. You are to examine these two statements carefully and decide if the assertion A and reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using odes given below. Assertion (A): Entire skeleton of shark is made of cartilage. Reason (R): Cartilage is also found in joints in body.

A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer» C. A is true but R is false.
2016.

________is also known as tailbone.

A. Cervical  
B. Coccyx
C. Sacrum        
D. Thoracic
E. None of these
Answer» C. Sacrum        
2017.

In which of the following animals exoskeleton is found?

A. Snakes 
B. Cockroaches
C. Fishes 
D. All the above 
E. None of these
Answer» C. Fishes 
2018.

DIRECTIONS: Read the passage (s) given below and answer the questions that follow Passage - 2 What is the term used to describe the phase change of a liquid to a gas?

A. Boiling         
B.          Condensation
C. Melting            
D. None of the above
Answer» B.          Condensation
2019.

Which of the following is NOT a feature of a physical change?

A.  It is reversible.
B.      It is temporary.
C.      No new substance is formed.      
D.      The composition of the substance changes.    
Answer» E.
2020.

Consider the following changes and select the option that can be used to classify these. stretching of rubber band cooking of food heating of milk stretching of spring burning of paper

A. periodic and non-periodic change
B. physical and chemical change
C. expansion and contraction
D. None of these
Answer» C. expansion and contraction
2021.

An aeroplane was cut out from a rectangular sheet of paper. The change involved is a

A. physical change 
B. temporary change
C. irreversible change      
D. None of these
Answer» D. None of these
2022.

Stunted growth, swelling efface, discolouration of hair, skin diseases and diarrhoea are the symptoms of

A. protein deficiency       
B. fat deficiency
C. imbalanced diet 
D. Both (a) and (c)
Answer» B. fat deficiency
2023.

Match the following: Column A Column B (i) Collar bone [A] Ulna (ii) Forearm bone [B] Femur (iii) Thigh bone [C] Clavicle (iv) Lower leg bone [D] Tibia

A. (i-D), (ii-C), (iii-A), (iv-B)
B. (i-C), (ii-A), (iii-B), (iv-D)
C. (i-B), (ii-C), (iii-D), (iv-A)
D. (i-C), (ii-D), (iii-B), (iv-A)
E. None of these
Answer» C. (i-B), (ii-C), (iii-D), (iv-A)
2024.

Which statement means Gait?

A.  Manner of nutrition in animals.
B.  Manner of movement.  
C.  Manner of reproduction.
D.  The habitat of animals.
Answer» C.  Manner of reproduction.
2025.

The new substance formed during or after a chemical reaction is:

A. Catalyst   
B. Inhibitor
C. Product
D.        Reactant
E. None of these
Answer» D.        Reactant
2026.

Expansion of iron on heating is which kind of change?

A. Chemical          
B. Desirable
C. Reversible      
D.        Both [b] and [c]
E. None of these
Answer» E. None of these
2027.

Raju observed swelling in his neck region. What could be the disease he is suffering from?

A.  Anaemia       
B.      Marasmus       
C.      Scurvy   
D.      Goitre
Answer» E.
2028.

DIRECTIONS: The questions in this segment consists of two statements, one labelled as ?Assertion A? and the other labelled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion A: The change of water from liquid to steam on heating is a physical change. Reason R: Conversion of liquid into steam is called evaporation.

A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer» C. A is true but R is false.
2029.

A network of bones which are joined to sternum at one end and backbone to the other end.

A. Cranium bones    
B. Hip girdle
C. Ribcage     
D.     Wrist bones
E. None of these
Answer» D.     Wrist bones
2030.

Which among the following undergoes contraction and relaxation to help the body in locomotion?

A. Bones      
B. Joints
C. Muscles     
D.        Blood
E. None of these
Answer» D.        Blood
2031.

Which of the following plays a very important role in the oxygen cycle?

A.  Birds 
B.      Animals   
C.      Plants      
D.      Soil
Answer» D.      Soil
2032.

Why do we keep food in a refrigerator?

A.  To save money
B.      To make food tastier
C.      To prevent food from getting spoiled
D.      It is fashionable to keep food in the refrigerator
Answer» D.      It is fashionable to keep food in the refrigerator
2033.

Back bone is made up of many small bones encloses and supports the spinal cord extends from skull to tip of tail forms the main supporting axis

A. (i), (ii), (iii) are correct
B. (ii), (iii) are correct
C. (i), (iv) are correct
D. (i), (ii), (iii) and (iv) are correct    
Answer» E.
2034.

Raghu in his craft class is making beads by using POP (plaster of paris). The setting of beads by using water is a/an:

A. Physical change          
B. Reversible change
C. Irreversible change       
D. No change
E. None of these
Answer» D. No change
2035.

The percentage of nitrogen in air is

A.  21%.      
B.      0.1%. 
C.      54%.      
D.      78%.
Answer» E.
2036.

If you pour a few drops of petrol on your palm, you will feel cool as it evaporates. What type of reaction is this?

A.  Endothermic reaction
B.      Exothermic reaction
C.      Chemical reaction
D.      Slow reaction
Answer» B.      Exothermic reaction
2037.

The amount of water vapour in air is greater in

A.  the rainy season.
B.      the dry season.
C.      the summer season.
D.      the autumn season.
Answer» B.      the dry season.
2038.

Burning of candle is a

A. physical change 
B. chemical change
C. periodic change 
D. Both (a) and (b)
Answer» E.
2039.

Few changes are given below. Mark the correct option from the codes given below.      (i) Milk is set to form curd.   (ii) Batter is steamed to form idlis.      (iii) Water is boiled to form steam.      (iv) Salt is dissolved in water to form solution.  

A.        (i) (ii) (iii) (iv)  Physical  Physical  Chemical Chemical
B. (i) (ii) (iii) (iv)  Physical  Chemical Physical  Chemical       
C. (i) (ii) (iii) (iv)  Chemical Chemical Physical  Physical 
D. (i) (ii) (iii) (iv)  Physical  Chemical Chemical Physical 
Answer» D. (i) (ii) (iii) (iv)  Physical  Chemical Chemical Physical 
2040.

The joint in between the adjacent vertebrae in the back bone is

A. Hinge joint      
B.       Pivotal joint
C. Fixed joint        
D. Gliding joint
Answer» E.
2041.

A specialized organ of our body whose function is contraction by means of which change of shape or movement of body part is under taken

A. cartilage 
B.          muscle
C. Both of these            
D. None of these
Answer» C. Both of these            
2042.

Which characteristic feature enables a bird to fly?

A.  Feathers   
B.  Wings
C.  Hollow bones
D.  All of these
Answer» E.
2043.

The gas produced in the closed container is

A. air 
B. oxygen
C. nitrogen    
D. carbon dioxide
Answer» E.
2044.

What is common among the following phenomena? 1. Blinking of traffic lights. 2. Rotation of blades of a fan. 3. Swinging of pendulum of a clock.

A.  All are chemical changes.
B.  All are periodic changes.
C.  All are undesirable changes.
D.  All are irreversible changes.
Answer» C.  All are undesirable changes.
2045.

Which of the following food components is present in banana?

A.  Vitamin A     
B.      Calcium   
C.      Phosphorus    
D.      Iodine
Answer» D.      Iodine
2046.

DIRECTIONS: Read the passage (s) given below and answer the questions that follow Passage - 4 Mohan was boiling water in a pan for making tea. His brother Ram came there and observed that during boiling of water some bubbles are formed. He told his brother Mohan that boiling of water is a chemical change as gas is evolved in this process. But Mohan argued that this is not a chemical change. According to you what is the gas that is observed by Ram?

A. Oxygen        
B.          Water vapours
C. Carbon dioxide
D.         No gas is formed
Answer» C. Carbon dioxide
2047.

DIRECTIONS: Match Column-I with Column-II and select the correct answer using the codes given below the column. Column - I Column - II A. Neck (p) Slither B. Shoulder (q) Pivotal joint C. Birds (r) Ball and socket joint D. Snake (s) Have hollow bones

A. \[A\to (p);B\to (q);C\to (r);D\to (s)\]
B. \[A\to (s);B\to (q);C\to (r);D\to (p)\]
C. \[A\to (r);B\to (s);C\to (q);D\to (p)\]
D. \[A\to (q);B\to (r);C\to (s);D\to (p)\]
Answer» E.
2048.

The type of joint in which a cylindrical bone rotates in a ring is which of the following types of joint?

A. Ball and socket joint 
B. Pivotal joint
C. Hinge joint
D. Fixed joint
Answer» C. Hinge joint
2049.

In which of the following food groups fruits and green leafy vegetables can be included?

A.  Energy producing foods.
B.      Body building foods.
C.      Harmful foods.
D.      Protective foods.
Answer» E.
2050.

Which characteristic feature helps human being to walk upright?

A.  Their head bones are light.
B.  They have two legs.
C.  They do not have tail.
D.  Their backbone holds the body up vertically.
Answer» E.