NCERT Solutions for Class 6 Science Chapter 8: Body Movements

Check NCERT Solutions for class 6 Science Chapter 8: Body Movements. All these solutions are very helpful to clear all the doubts and manage your exam preparations in the easiest way. Students may also use these solutions to manage their homework assignments. We have provided easy and accurate solutions for all complex questions in Class 6 Science NCERT Chapter 8. Students also get here the provision to download these solutions and save them in PDF format so that they may use them as and when required.

NCERT Solution for Class 6 Science

Chapter 8 - Body Movements

1. Fill in the blanks:

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

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

(c) Bones at the elbow are joined by a _________ joint.

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

Answer.

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

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

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

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

2. Indicate true (T) or false (F) for the following sentences.

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

(b) Cartilages are harder than bones. ( )

(c) Finger bones do not have joints. ( )

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

(e) Cockroaches have an outer skeleton. ( )

Answer.

(a) False; Movement and locomotion of animals depend up on their body structure. So, animals with different body structure possess different modes of movement.

(b) False; Cartilages are not as hard as bones and can be bent easily.

(c) False; Finger bones also have joints.

(d) True.

(e) True

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

Answer.

Correct matches of column I with column II are given below:

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) Ball and socket joint is a movable joint. In this a bone with round head fits into hollow space of another bone. This makes the bone to rotate freely. For example, bones of hip and shoulder can move in all directions due to ball and socket joints.

(b) Lower jaw bone (Mandible bone) is the only skull bone which is movable.

(c) Our elbow cannot move backwards because it has a hinge joint which allows the movement in one plane only.

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Download CBSE Class 6 Science NCERT Solutions for Chapter 8

About NCERT Class 6 Science Chapter 8

This chapter specifically discusses about the body movements in animals and human beings by explaining about the various processes and parts involved in theirlocomotion. It explains the structure, location and function of different joints responsible for body movement in human beings. Formation of joints and other details are also described here. The next section of this chapter talks about the pattern of movement in different animals such as earthworm, snail, cockroach, birds, fish, etc.

Major topics discussed in this chapter are:

• Human body and its movements
• Ball and socket joint
• Pivotal joint
• Hinge joint
• Fixed joint
• Gait of animals
• How do snakes move?

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