CBSE Class 6 Science Body Movements Worksheet Set 01

body movements

Question 1- What are the small bones present in backbone called?
Answer- Vertebrae.

Question 2- Name the ridges like bones which we feel when we touch our chest region.
Answer- Ribs.

ACTIVITY- 5 : To know about the points where bones meet. 

Question 1- When you tie a scale with your arm, are you able to bend your elbow?
Answer- No.

Question 2- Name the points where two parts of body are seen to be joined together.
Answer- Joints.

ACTIVITY- 6 : To make a model of hinge joint. 

Question 1- Move your arm at shoulder. Are you able to move it various directions? If yes name the type of joint present there.
Answer- Yes, we can move our shoulder in various directions. Our shoulder has ball and socket joint.

Question 2- Move your arm at elbow. Are you able to move it in various directions? If yes name the type of joint present there.
Answer- No, we cannot move our arm at elbow in all directions, because it has hinge joint.

EXERCISE

1- Fill In The Blanks.

a). The points where bones meet are called joints.
b). Human skeleton is made up of bones and cartilages.
c). Skull protects brain of our body.
d). Earthworm can extend or shorten its body by using its muscles.
e). Knee joint is an example of hinge joint.

2- Write True Or False.

a. Rib cage is conical structure made up of 12 pairs of ribs. (False)
b) Cartilages are harder than bones. (False)
c) Bones do not need the help of muscles to move. (False)
d) A streamlined body is one in which middle part of body is larger than head and tail part. (True)
e) Snakes move very fast in a straight line. (False)

3- Match The Column:-
   
Column A                           Column B
1. Ball and Socket joint        a. Skull Bones
2. Immovable joint              b. Fingers
3. Hinge joint                      c. Wrist bones
4. Pivot joint                       d. Shoulder
5. Gliding joint                    e. Movement of head
Ans.1-d,2-2-a,3-b,4-e,5-c

4. Choose The Correct Answer.

Question. Which of the following organ is protected by rib cage:
a) Heart 
b) Brain
c) Eyes
d) Ear
Ans.a) Heart

Question. Snail moves with the help of:
a) Shell
b) Bones
c) Muscular foot 
d) Cartilage
Ans.c) Muscular foot

Question. Fish maintains its balance water and change its directions with the help of:
a) Head
b) Gills
c) Fins
d) Body Scales
Ans.c) Fins

5- Very Short Answer Type Questions.

Question. Name the longest bone in human body.
Answer- Femur.

Question. Name the type of joint where arms join the shoulder.
Answer- Ball and Socket joint.

Question. What is the difference between movement and locomotion?
Answer- Movement is change in position of one part of body whereas locomotion means moving the whole body from one place to another.

Question. Give an example of an organism which can walk, climb and fly?
Answer- Cockroach.

6- Short Answer Type Questions.

Question. Why we need a pair of muscles to move a bone?
Answer- Because to move a bone one muscle contracts and other one relax at the same time.

Question. How does earthworm move?
Answer- Earthworm moves by regular contractions and expansions of body using muscles. Snail moves by muscular foot.

Question. How does the body of a bird help it in flight?
Answer- Birds have streamlined body, hollow bones and forelimbs modified into wings which enable them to fly in air.
 

Question 7- Long Answer Type Questions.

Question. Explain different types of joints present in human body.
Answer- (1) Fixed Joints- Joints where no movement of bones is possible. For example joints in skull.

(2) Movable Joints- The joints where movement of bones is possible. It has four types-
(i) Ball and Socket Joint- In this joint a ball like end of one bone moves in socket like end of another bone. For example joint in shoulder.
(ii) Pivot Joint- In this joint a cylinder like end of one bone rotates in ring like end of another bone.
For example joint in neck.
(iii) Hinge Joint- This joint is like hinge in door. It allows movement of bones only in one direction i.e. up and down or back and forth. For example joints in elbow and knee etc
(iv) Gliding Joint- This joint allows bones to glide over each other. For example joint in wrist.

Question. Explain the locomotion of fish.
Answer- The fish has streamlined body. Fish produces regular jerks by making curves and pushes the body forward. The body movements like change in directions while swimming and to maintain balance is helped by fins.

1) Which system forms the supporting framework of the body?

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2) Do snakes have legs?

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3) Give example of an immovable joint or fixed joint?

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4) Where do we find Ball and socket joints in our body?

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5) Where do we find Hinge joints in our body?

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