NCERT Solutions for Class 6 Science Chapter 8 – Body Movements, contains solutions to various questions in Exercise for Chapter 8. At the end of the Solutions, all the keywords and Notes which are important to understand NCERT Solutions for Class 6 Science Chapter 8 – Body Movements, have been explained in a simple and easy to understand manner. We are providing NCERT Solutions for Class 6 all subjects which can be accessed by clicking here.
NCERT Solutions for Class 6 Science Chapter 8 – Body Movements – Video Explanation
Even when you are seating ideally, some parts of your body are still in movement. You must be blinking your eyes, time to time.
Thus, for any action, we can say that various parts of our body comes in motion. In this lesson, you will learn about body joints and movements.
NCERT Solutions for Class 6 Science Chapter 8 – Body Movements – Solutions to Question 1 and 2
NCERT Solutions for Class 6 Science Chapter 8 – Body Movements – Solutions to Question 3 and 4
NCERT Solutions for Class 6 Science Chapter 8 – Body Movements – Solutions to Question 4 and Definition of the Keywords – Backbone, Muscle, Ball and socket joint, Outer skeleton, Bristles, Pelvic bones, Cartilage, Pivotal joint and Cavity
NCERT Solutions for Class 6 Science Chapter 8 – Body Movements – Definition of the Keywords – Rib cage, Fixed joint, Shoulder bones, Gait of animals, Skeleton, Hinge joint and Streamlined
Science Chapter 8 Body Movements, Exercises includes – Questions/ Answers, Fill in the blanks, True or False and Match the Column, which helps you to understand the topic covered in the Body Movements, in a better manner to help you to score good marks in your examinations.
NCERT Solutions for Class 6 Science Chapter 8 – Body Movements – NCERT Exercises
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 1: –
(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.
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. ( )
NCERT Solutions for Class 6 Science Chapter 8 – Body Movements
Match the items in Column I with one or more items of Column II.
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 4: –
(a)When the rounded end of a bone fits in the cavity of another bone to form a joint, it can freely move in all directions. Such a joint is called ball and socket joint.
(b)We can move our lower jaw away when we open our mouth wide. Hence, the bones in lower jaw of our skull is a movable.
(c)The elbow has a hinge joint. These joints can move only back and forth, restricting the movement in one direction.
Topics Covered in Science Chapter 8 Body Movements:-
- HUMAN BODY AND ITS MOVEMENTS
– Ball and socket joints
– Pivotal Joint
– Hinge joints
– Fixed joints
- GAIT OF ANIMALS
– How do snakes move?
Important Terms Relevant to understand NCERT Solutions for Class 6 Science Chapter 8 – Body Movements: –
Backbone: Also known as the spine, the backbone is a series of 33 vertebrae that runs from the neck to the hips. It’s job is to support the body.
Muscle: Muscles are the tissues that help in movement of bones. When a muscle contracts, it pulls the bone making movement possible.
Ball and socket joint: When the rounded end of a bone fits in the cavity of another bone to form a joint, it can freely move in all directions. Such a joint is called ball and socket joint.
Outer skeleton: Some animals have a skeletal structure outside their body to protect and support them. This structure is known as outer skeleton. Cockroaches, snails, and turtles have an outer skeleton.
Bristles: Short and stiff hair-like structures that some animals, such as earthworms use for gripping while movement are called bristles.
Pelvic bones: Pelvic bones enclose the body below stomach. They help us sit.
Cartilage: Cartilages are soft, connective tissues. They can be found in upper parts of the ear.
Pivotal joint: A cylindrical bone rotates in a ring giving access torotatory motion only in one direction. This kind of joint is known as pivotal joint. It can be found where our neck joins our head.
Cavity: A hollow space where another bone can fit in order to form a joint is known as a cavity.
Rib cage: Rib cages are curiously bent bones that join the chest bone and the backbone together to make a box. They are also responsible for the protection of heart.
Fixed joint: Some bones in our body do not move. These bones are joined by a fixed joint. The skull has many fixed joints.
Shoulder bones: The prominent bones on our back near the shoulders are called shoulder bones. They are connected by a ball and socket joint.
Gait of animals: The manner in which an animal moves its body in order to go from one place to another is called its gait. For example, a dog walks on all its four limbs and a snake slithers its body.
Skeleton: Skeleton is the basic structure of body formed by bones and cartilages. It gives a frame to the body and helps in protecting vitals organs such as the brain.
Hinge joint: Joints that allow movement only in back and forth direction are called hinge joints.
Streamlined: The shape in which the front and the end of the body are thinner than the middle is called streamlined. The body is tapered at both ends. Fish has a streamlined body to help it cut through water while swimming.