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NCERT Solutions for Class 6 Science Chapter 8 Body Movements

NCERT Solutions for Class 6 Science Chapter 8 Body Movements

NCERT Solutions for Class 6 Science Chapter 8 Body Movements

Question 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.

Answer:-

(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.

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

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

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

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

(d) The fore arm has two bones. ( )

(e) Cockroaches have an outer skeleton. ( )

Answer:-

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

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

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

(d) The fore arm has two bones. ( True )

(e) Cockroaches have an outer skeleton. ( True )

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

 

NCERT Solutions for Class 6 Science Chapter 8 Body Movements

Question 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?

Answer:- (a)  A joint that allows movements in all directions is called ball and socket joint.

In this joint rounded end of one bone fits into the hollow space of the other bone.

(b) Lower jaw

(c) As our elbow has hinge joint which allow movement in only one direction. So our elbow cannot move backwards it can only move back and forth.