Class 6Science

NCERT Class 6 Science Solutions Chapter 5: Body Movement

Class 6 Science Solutions Chapter 5: Body Movement

Exercise Answers:

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.

Solution:

(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. ( )

Solution:

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.

Solution:

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

Solution:

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?

Solution:

a) When two bones meet, the rounded end of one bone fits into the cavity or hollow space of the other bone. This type of joint is called a ball and socket joint, which permits movement in every direction.

b) Lower jaw

c) The human elbow joint is comprised of hinge joints that restrict its movement to only back-and-forth motion, preventing movement in other directions.

Other, chapter solutions for class 6 science:

NCERT Solutions for Class 6 Science

Experts Ncert Solution

Experts of Ncert Solution give their best to serve better information.

Leave a Reply

Back to top button
WhatsApp API is now publicly available!