Chapter 8: Body movements
These NCERT Class 6 Science Chapter 8 notes explain how body movements take place in humans and animals. The chapter introduces students to the skeletal system, which provides shape and support to the body.
NCERT Class 6 Science Chapter 8 – Body Movements helps students understand the role of bones, joints, and muscles in movement. It also explains different types of joints and how animals like fish, birds, snakes, and earthworms move.
This chapter builds a foundation for understanding human biology, health, and movement, which is useful in everyday life.
1. Meaning of body movement
- Body movement means the ability of living beings to move body parts
- Movement helps us perform daily activities
- Movement is possible due to bones, muscles, and joints
- Different movements involve different body parts
- Walking, running, bending, writing are examples of body movements
2. Human skeletal system
- Skeleton is the framework of bones in our body
- It gives shape to the body
- It provides support to the body
- It protects important internal organs
- Skeleton helps the body to stand and move
3. Major parts of skeleton
- Skull protects the brain
- Backbone supports the body
- Rib cage protects heart and lungs
- Limbs help in movement
- All parts together form the skeletal system
4. Skull
- Skull protects the brain
- It is made of many fused bones
- Skull bones do not move
- It gives shape to the face and head
- It is a fixed part of the skeleton
5. Backbone
- Backbone is also called vertebral column
- It is made of small bones called vertebrae
- Backbone supports the upper body
- It helps in bending and twisting
- Backbone helps us stand upright
6. Rib cage
- Rib cage is made of ribs and breastbone
- It protects the heart
- It protects the lungs
- Rib cage helps in breathing
- It forms a strong protective cage
7. Joints
- Joints are places where two bones meet
- Joints allow movement of bones
- Different joints allow different types of movement
- Some joints allow free movement
- Some joints allow no movement
8. Types of joints
- Fixed joints do not allow movement like skull bones
- Ball and socket joint allows movement in all directions like shoulder and hip
- Hinge joint allows movement in one direction like elbow and knee
- Pivot joint allows rotational movement like neck
- Gliding joint allows sliding movement like wrist and ankle
9. Muscles
- Muscles are attached to bones
- Muscles help bones to move
- Muscles work by contracting and relaxing
- Muscles always work in pairs
- Without muscles, movement is not possible
10. Movement in other animals
- Fish swim using fins and tail
- Birds fly using wings and walk using legs
- Snake moves by forming loops using ribs and muscles
- Earthworm moves by contraction and relaxation of muscles
- Different animals have different movement methods
11. Importance of body movements
- Body movements help in eating and working
- Movements help in protecting oneself
- Movements are essential for survival
- Proper movement keeps the body active
- Movement supports healthy living
12. Importance of this chapter
- Explains the structure of the human body
- Helps understand movement and support system
- Builds foundation for biology
- Useful for health science basics
- Helps understand animal movement
13. Important keywords and definitions
- Skeleton: Framework of bones that gives shape and support to the body
- Bone: Hard structure that forms the skeleton
- Joint: Place where two bones meet
- Muscle: Tissue that helps in movement by contracting and relaxing
- Vertebrae: Small bones that make up the backbone
- Rib cage: Bony structure that protects heart and lungs
- Movement: Ability of living beings to move body parts
Understanding NCERT Class 6 Science Chapter 8 helps students learn how the human body moves and performs activities. The chapter connects structure with function and movement.
The concepts discussed in Body Movements prepare students for future learning in biology and health sciences.
Continue reading NCERT Class 6 Science Chapter 9 – The Living Organisms and Their Surroundings to understand habitats and adaptations.
FAQs
Q1. What is body movement according to NCERT Class 6 Science Chapter 8?
Body movement is the ability of living beings to move their body parts.
Q2. What is the function of the skeleton?
The skeleton gives shape, support, and protection to the body.
Q3. What are joints?
Joints are places where two bones meet and allow movement.
Q4. Why do muscles work in pairs?
Muscles work in pairs because one muscle contracts while the other relaxes.
Q5. Why is this chapter important for exams?
It explains movement and body structure, useful for school exams and BPSC foundation.