Class VII_Body Movements

Class VISubject ScienceChapter Animal and human body

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2.Objective Screen

Graphic Description

Audio Script In this lesson, you will learn To identify different types of joints in human body . To identify Ball and Socket joint, Pivotal joint, Hinge joint and Fixed joint. To explain Human skeleton To classify different types of bones in our body To recognize the wrist bone, the rib cage, the backbone, the pelvic bone and the

skull. To explain the body structure and movements of fish, snail, cockroach etc. To differentiate between the body structure and movements of an earthworm

and a snake

TOS (Text On Screen) In this lesson, you will learn

To identify different types of joints in human body . To identify Ball and Socket joint, Pivotal joint, Hinge joint and

Fixed joint. To explain Human skeleton To classify different types of bones in our body To recognize the wrist bone, the rib cage, the backbone, the

pelvic bone and the skull. To explain the body structure and movements of fish, snail,

cockroach etc. To differentiate between the body structure and movements of

an earthworm and a snake

Instructions to

GD

Screen No. and Type

3.Content Outline

Graphic Description

Audio Script Movements in plant Movements in humans Different types of joint in a human body Ball and socket joint Pivot joint Hinge joint Fixed joint Human Skeleton Different types of bones in our body The wrist The Rib cage The Backbone The pelvic bone and Skull Body structure and movement in earthworm Body structure and movement in snail Body structure and movement in cockroach Body structure and movement in birds Body structure and movement in fish Body structure and movement in snake

TOS (Text On Screen)

Movements in plant Movements in humans Different types of joint in a human body Ball and socket joint Pivot joint Hinge joint Fixed joint Human Skeleton Different types of bones in our body The wrist The Rib cage The Backbone The pelvic bone and Skull Body structure and movement in earthworm Body structure and movement in snail Body structure and movement in cockroach Body structure and movement in birds Body structure and movement in fish Body structure and movement in snake

Instructions to GD

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4 Introduction

Graphic Description

Audio Script

When you move from place to place, you use your legs and other parts of your body such as your hands also move. Even when you do not change place and remain seated at one place, your eyes blink, when you turn your neck moves. Body movements take place almost each and every moment.Not just with humans, even other animals constantly keep moving.TOS (Text On Screen)

Your body parts keep moving even when you sit idle!

Instructions to GD

Text should be in sync with the audio

Your body parts show some movements whether you are in motion or at rest!

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5 Movement in plants

Graphic Description

Audio ScriptDo plants also move? Various parts of plants move due to wind or action of animals. You must have heard about the “touch me not” plant which moves when you touch it.


Plants move due to action of wind or animals

Instructions to GD


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6 Activity

Graphic Description

Audio ScriptMake a list of different animals and note the body part they use to move and how they move.


AnimalBody part used for moving

How does the animal move?

Cow Legs WalkHumans Snake Whole body SlitherBird Insect Fish

Instructions to GD

Text should follow the audio

The “touch me not” plant shows movements when

you touch it!

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7 Movement in humans

Graphic Description

Audio ScriptTry out different movements like bowling, bending the elbow and knee, stretching the arms sideways and bending the arms to touch the shoulders with fingers. You will notice that you can move some body parts easily in various directions while some can be moved only in one direction.


Some body parts move easily in various directions while some can be moved only in one direction.

Instructions to GD


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8 Joints

Graphic Description

Audio ScriptYou can rotate your body where two parts of the body are joined like elbow, knee, neck etc. These places are called joints.Bones are joined at places like elbow and knee. You can bend only those parts at which bones meet.TOS (Text On Screen)

Bones are joined at places like elbow and knee. You can bend only those parts at which bones meet.

Instructions to GD


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9 Types of Joints

Graphic Description

Audio Script

Knee and Elbow can be moved easily because they have joints

There are different types of joints which help in our body movement. They are – Ball and socket joints, Pivotal Joints, Hinge Joints and Fixed Joints.


There are different types of joints which help in our body movement. They are –

Ball and socket joints Pivotal Joints Hinge Joints and Fixed Joints.

Instructions to GD


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10 Types of Joints - Ball and socket joints

Graphic Description

Audio ScriptTouch the part of your body where arm joins with the shoulder. Here the rounded end of one bone joins with the hollow space of other bone. Joints of this type allow motion in all directions. These are called “Ball and socket joints”

Rounded end of one bone joins with the hollow space of other bone.


Touch the part of your body where arm joins with the shoulder. Here the rounded end of one bone joins with the hollow space

of other bone. Joints of this type allow motion in all directions. These are called “Ball and socket joints”

Instructions to GD


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11 Types of Joints – Pivotal Joints

Graphic Description

Audio ScriptThe point where your head joins with your neck is a pivotal joint. It allows to move upward, downward, rightward and leftward.


The point where your head joins with your neck is a pivotal joint.

It allows to move upward, downward, rightward and leftward.Instructions to GD


Screen No. 12 Types of Joints – Hinge Joints

The pivotal joint allows movement in

upwards, downwards,

rightwards and leftwards direction

and TypeGraphic Description

Audio ScriptHinge joints allow only back and forth motion. They are found in knee and elbow. In case of hinge joints, round shape of one bone fits into the hemispherical shape of other bone.TOS (Text On Screen)

Hinge joints allow only back and forth motion. They are found in knee and elbow. In case of hinge joints, round shape of one bone fits into the

hemispherical shape of other bone.Instructions to GD


Screen No. and Type

13 Types of Joints – Fixed Joints

Graphic Description

Round shape of one bone fits into the

hemispherical end of other bone.

Unlike lower jaw, upper jaw

cannot be moved away

from the head. There is a joint

between the upper jaw and the head which is a fixed joint.

Audio ScriptNot all the parts of the body with joints can be moved. There are bones in your head which are joined at various points. However, the bones cannot move at those joints. Such joints are called fixed joints.TOS (Text On Screen)

Joints at which bones cannot be moved are called fixed joints.

Instructions to GD


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14 Skeleton

Graphic Description

Audio ScriptThe framework of our body made of bones which gives shape to the body is called skeleton. You can see your skeletal image with the help of X-ray

Skeleton is the framework of the body made up of bones.


The framework of our body made of bones which gives shape to the body is called skeleton.

Instructions to GD


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15 Bone in your body – The wrist

Graphic Description

Audio ScriptThe wrist is made up of several bones with joints that it easier for you to bend it. Had it been made up of only one bone, you would not have been able to bend it.


The wrist is made up of several bones with joints that it easier for you to bend it

Instructions to GD


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16 Bone in your body – The rib cage

Graphic Description

X-ray of wrists

Wrist is made up of various bones which it easier for us to bend it

Audio ScriptBones of the chest are called ribs. Ribs are bent and they join chest bone and back bone together to form a box called rib cage. Many important organs lie protected inside the rib cage.TOS (Text On Screen)

Bones of the chest are called ribs. Ribs are bent and they join chest bone and back bone

together to form a box called rib cage. Many important organs lie protected inside the rib cage.

Instructions to GD


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17 Bone in your body – The backbone

Graphic Description

Ribs join chest bone and backbone together to form rib

cage

Audio ScriptThe backbone is made of many small bones because of which you can bend forward.The backbone provides an upright structure to the body.


The backbone is made of many small bones because of which you can bend forward.

The backbone provides an upright structure to the body.Instructions to GD


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18 Bone in your body – The pelvic bone and the skull

Graphic Description

The backbone provides an upright structure to the body

Pelvic bones enclose the part of the body below the stomach

Skull encloses the most important part of the body - the brain

Audio ScriptPelvic bone encloses the structure of your body below the stomach that is, the part you sit on.Skull is made of many bones joined together and encloses the brainTOS (Text On Screen)

Pelvic bones enclose the part of the body below the stomach Skull is made of many bones joined together and encloses the

brainInstructions to GD


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19 The cartilage

Graphic Description

Audio ScriptNot all the parts of the skeleton are hard as bones. There are some parts which are soft and can be bent. They are called cartilage. Cartilage is found in ears.Muscles and cartilage also help in movement of the body.TOS (Text On Screen)

There are some parts which are soft and can be bent. They are called cartilage.

Cartilage is found in ears. Muscles and cartilage also help in movement of the body.

Instructions to GD


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20 Movement in earthworm

Graphic Description

Earthworm moves by continuous expansion and

relaxation of muscles. It does not have bones.

Audio ScriptThe body of earthworm is made up of rings joined end to end. It does not have bones but only muscles which help to extend and shorten the body. During movement, the earthworm first extends the front part of the body keeping the rear end fixed and then it moves the rear end keeping the front end fixed.It also secretes a slimy substance to help in the movement of the body.TOS (Text On Screen)

Earthworm does not have bones. It moves by continuous expansion and relaxation of the

muscles. It also secretes a slimy substance to help in the movement of

the body.Instructions to GD


Screen No. and Type

21 Movement in snail

Graphic Description

Audio ScriptThe round structure outside a snail is called shell. It is the skeleton of the snail but is not made of bones. Snail moves with the help of the foot which lies beneath the shell.


Snail moves with the help of the foot which lies beneath the shell.

Instructions to GD


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22 Movement in cockroach

Graphic Description

Snail moves with the help of legs that lie beneath the shell

Audio ScriptCockroaches walk, climb as well as fly in the air. They have three pairs of legs which help in walking. The body is covered with a hard skeleton which is made of different joined units which permit movement. Pairs of wings help it in flying. TOS (Text On Screen)

Cockroaches walk, climb as well as fly in the air. They have three pairs of legs which help in walking. The body is covered with a hard skeleton which is made of

different joined units which permit movement. Pairs of wings help it in flying.

Instructions to GD


Screen No. and Type

23 Movement in birds

Graphic Description

A cockroach can walk, climb as well as fly

Audio ScriptBirds can fly as well as walk. Some birds also swim in the water.Birds fly with the help of wings. Hollow bones make them light; suitable for flying.The bones of hind limbs help in walking.TOS (Text On Screen)

Birds can fly as well as walk. Some birds also swim in the water.

Birds fly with the help of wings. Hollow bones make them light; suitable for flying.

The bones of hind limbs help in walking.Instructions to GD


Screen No. and Type

24 Movement in fish

Graphic Description

3D image of a bird skeleton

Audio ScriptThe fish has a streamlined body which helps it in swimming in water. The skeleton is covered with strong muscles. During swimming the muscles takes front part in one way and the tail part in the opposite way. Then, quickly the body and the tail curve to opposite sides. This helps in movement.TOS (Text On Screen)

The fish has a streamlined body which helps it in swimming in water.

The skeleton is covered with strong muscles. During swimming the muscles takes front part in one way and

the tail part in the opposite way. Then, quickly the body and the tail curve to opposite sides. This helps in movement.

Instructions to GD


Screen No. and Type

25 Movement in snake

Graphic Description

Movement in fish

Audio ScriptSnakes have a long backbone and many thin muscles. The body curves into many loops. Each loop gives the body a forward push by pressing it against the ground.


Snakes have a long backbone and many thin muscles. The body curves into many loops. Each loop gives the body a forward push by pressing it against

the ground.Instructions to GD


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26 Summary

Graphic Description

Audio Script Bones and cartilage form the skeleton of the human body. The bone joints are of various kinds depending on the nature of joints and

direction of movement they allow. Strong muscles and light bones work together to help the birds fly. Snakes slither on the ground by looping sideways.


Bones and cartilage form the skeleton of the human body. The bone joints are of various kinds depending on the nature

of joints and direction of movement they allow. Strong muscles and light bones work together to help the birds

fly. Snakes slither on the ground by looping sideways.

Snake moves by making loops

Instructions to GD


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27 Assessment Screen

Graphic Description

Audio Script


1. Fill in the blanks(a) Joints of the bones help in the ------------- of the body.(b) The bones at the elbow are joined by a ---------------- joint.(c) The contraction of the --------------- pulls the bones during

movement.Ans. (a) Skeleton(b) Hinge(c) Muscles

2. Indicate whether true or false(a) The movement and locomotion of all animals is exactly the

same.(b) The cartilages are harder than bones.(c) Cockroaches have an outer skeleton.

Ans.(a) FALSE(b) FALSE(c) TRUE

Instructions to GD


Class VII_Body Movements

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