Fibre to fabric Class 7 Notes | EduRev

Class 7 : Fibre to fabric Class 7 Notes | EduRev

 Page 1


 
                           
INDIAN SCHOOL MUSCAT 
MIDDLE SECTION 
DEPARTMENT OF SCIENCE 
Subject :Science                                                      Revision  worksheet: 8 
Topic :FIBRE TO FABRIC                                               Class:7  
Date of issue:06/10/2016 
 
ANSWER THE FOLLOWING QUESTIONS 
Q1)  why do we wear woollens in winter? 
Q2) What are the two types of fibers found in sheep’s hairy coat? 
Q3) Why is wool of Merino sheep used for making finest woolen 
clothes?  
  Q4)  Name the different processes involved in wool production and 
define each process. 
Q5)  Describe the steps involved in making Fleece to yarn. 
Q6) What are the health hazards in the wool production? 
Q7) In short describe the life cycle of the silk moth. Draw diagram 
Q8) What is sericulture? Give the summary of the process of sericulture 
Q9) How can we differentiate between natural silk and artificial silk? 
(  Note: Answer the following Questions from pgs 46 C ( 1-8 ) & 47 
D ( 1 – 5 ) in your science note book ) 
Page 2


 
                           
INDIAN SCHOOL MUSCAT 
MIDDLE SECTION 
DEPARTMENT OF SCIENCE 
Subject :Science                                                      Revision  worksheet: 8 
Topic :FIBRE TO FABRIC                                               Class:7  
Date of issue:06/10/2016 
 
ANSWER THE FOLLOWING QUESTIONS 
Q1)  why do we wear woollens in winter? 
Q2) What are the two types of fibers found in sheep’s hairy coat? 
Q3) Why is wool of Merino sheep used for making finest woolen 
clothes?  
  Q4)  Name the different processes involved in wool production and 
define each process. 
Q5)  Describe the steps involved in making Fleece to yarn. 
Q6) What are the health hazards in the wool production? 
Q7) In short describe the life cycle of the silk moth. Draw diagram 
Q8) What is sericulture? Give the summary of the process of sericulture 
Q9) How can we differentiate between natural silk and artificial silk? 
(  Note: Answer the following Questions from pgs 46 C ( 1-8 ) & 47 
D ( 1 – 5 ) in your science note book ) 
 
 
 
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