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NCERT Exemplar · Class 6 · Science

Chapter 8: Body Movement

Practice each question, then open the answer or worked solution.

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Long Answer Questions

3 questions
Q17Written answer

(a) Unscramble the jumbled words and write them in the blank spaces provided.

(i) Neosb

(ii) Iontcaronct

(iii) Tnemevom

(iv) lsecsum

(v) Arctigeal

(vi) Epahs

(vii) Sangro inerlan

(viii) Laxaeriont

(a) ____________ and (b) ____________ form the skeleton of the human body. They provide the framework, give (c) ___________ to the body and help in (d) ____________. They protect the (e) ____________. The bones are moved by alternate (f) ____________ and (g) ____________ of two sets of (h) ____________ attached to them.

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Worked solution

Ans: Bones

Ans: Contraction

Ans: Movement

Ans: Muscles

Ans: Cartilage

Ans: Shape

Ans: Internal organs

Ans:  Relaxation

(b) Read the following paragraph and fill in the blanks using the words you unscrambled.

Ans: The words to be filled in the blank spaces are as follows:

(a) Bones

(b) Cartilage

(c) Shape

(d) Movement

(e) Internal organs

(f) Contraction

(g) Relaxation

(h) Muscles


Q18Written answer

How is the skeleton of a bird well-suited for flying?

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Worked solution

Ans: The skeleton of a bird is well-suited for flying because the wings of the birds are attached to their thorax. Also, their light organs like the lungs and the sacs are at a higher position. The position of their heavy muscles lies in the center of their body. Due to the structure of the body of a bird, the air resistance is also reduced. In this way, a bird’s skeleton is well suited for flying.


Q19Written answer

In Fig. 8.2 There are two snakes of the same size slithering on the sand. Can you identify which of them would move faster and why?

seo images


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Worked solution

Ans: Since the two snakes A and B are slithering on sand, the snake which has more loops in its movement is very likely to move faster since snakes use left and right crawling to move forward which is known as slithering. Therefore, snake A will move faster as it has more loops in its movement.


Chapter 8 Body Movement - Overview


Chapter 8 of Science NCERT for Class 6 showcases thorough knowledge on how healthy bones, muscles, joints, and cartilages are needed by the body for movements and also the formation of skeletons in the human body. This particular chapter also includes details about the bones and joints that help animals move in different ways. In Chapter 8 of Class 6 Science Body Movements, you will learn what makes the bones move the way they do, along with the skeletal framework, alternate contraction, the gait of animals and insects.

 

Essential topics covered in Class 6 NCERT Solutions Chapter 8 of Science - Body Movements are:

  1. The human body and its movements

  2. Ball and socket joints

  3. Pivotal Joint

  4. Hinge joints

  5. Fixed joints

  6. Gait of animals – Structure and movement of earthworms, snails, cockroaches, fish, birds, self-confidence analyze, and snakes 

  7. Along with keywords and important activities for a better understanding of the topics