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Body Movements | Chapter 8 | Class 6 | Science | NCERT


1. Fill in the blanks.

(a) Joints of the bones help in the ——————— of the body.

(b) A combination of bones and cartilages forms the _______ of the body.

(c) The bones at the elbow are joined by a ______________________ joint.

(d) The contraction of the _____________ pulls the bones during movement.


(a) Joints of the bones help in the movement of the body.

(b) A combination of bones and cartilages forms the skeleton of the body.

(c) The bones at the elbow are joined by a hinge joint.

(d) The contraction of the muscles pulls the bones during movement.

2. Indicate true (T) and false (F) among the following sentences.

(a) The movement and locomotion of all animals are exactly the same. ( )

(b) The cartilages are harder than bones. ( )

(c) The finger bones do not have joints. ( )

(d) The forearm has two bones. ( )

(e) Cockroaches have an outer skeleton. ( )


a) False

b) False

c) False

d) True

e) True

3. Match the items in Column I with one or more items of Column II.

Column IColumn II
Upper jawHave fins on the body
FishHas an outer skeleton
RibsCan fly in the air
SnailIs an immovable joint
CockroachProtect the heart
Shows very slow movement
Have a streamlined body


Column IColumn II
Upper jawIs an immovable joint
FishHave fins on the body, have a streamlined body
RibsProtect the heart
SnailHas an outer skeleton andShows very slow movement
CockroachHas an outer skeleton andCan fly in the air

4. Answer the following.

(a) What is a ball and socket joint?

(b) Which of the skull bones are movable?

(c) Why can our elbow not move backwards?


a) The rounded end of one bone fits into the cavity (hollow space) of the other bone. Such a joint allows movements in all directions, which is called a ball and socket joint.

b) Lower jaw

c) Our elbow cannot move backwards because it has hinge joints which only allow back-and forth-movement.

NCERT Class 6 Science

Chapter 1: Food: Where Does It Come From?

Chapter 2: Components of Food

Chapter 3: Fibre to Fabric

Chapter 4: Sorting Materials and Groups

Chapter 5: Separation of Substances

Chapter 6: Changes Around Us

Chapter 7: Getting to Know Plants

Chapter 8: Body Movement

Chapter 9: The Living Organisms and Their Surroundings

Chapter 10: Motion and Measurement of Distances

Chapter 11: Light, Shadows and Reflections

Chapter 12: Electricity and Circuits

Chapter 13: Fun with Magnets

Chapter 14: Water

Chapter 15: Air Around Us

Chapter 16: Garbage In, Garbage Out

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