CBSE Class 8 Science Synthetic Fibers And Plastics Assignment Set D

Read and download free pdf of CBSE Class 8 Science Synthetic Fibers And Plastics Assignment Set D. Get printable school Assignments for Class 8 Science. Standard 8 students should practise questions and answers given here for Chapter 3 Synthetic Fibres And Plastics Science in Grade 8 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 8 Science prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations

Assignment for Class 8 Science Chapter 3 Synthetic Fibres And Plastics

Class 8 Science students should refer to the following printable assignment in Pdf for Chapter 3 Synthetic Fibres And Plastics in standard 8. This test paper with questions and answers for Grade 8 Science will be very useful for exams and help you to score good marks

Chapter 3 Synthetic Fibres And Plastics Class 8 Science Assignment


1. Answer the following in brief:

a) Name the process of formation of polymer from its monomer.

b) What are blended fibres ?Give any two examples.

 

2. Give reasons for the following:

a) Nylon is used in making socks.

b) Polyester is used for making sails for boats.

c) Synthetic fabric is uncomfortable during summers.

d) Terylene clothes should not be worn while working in kitchen.

 

3. Name the monomer unit of the following:

a) Cellulose

b) Polyester

c) P.V.C.

d) Polyethene

 

4. Differentiate between:

a) Thermoplastics & Thermosetting plastics

b) Synthetic fibres & natural fibres

c) Biodegradable & non-biodegradable materials

5. Why are plastics preferred to natural materials?

6. What do the 4 R’s in 4R principle stand for?

7. Manufacturing synthetic fibres is actually help in the conservation of forests. Comment.

8. Why is Bakelite used for making electrical switches?

9. Why do we use melamine for making kitchenware?

10. Write True or False against the following statements:

a) Polyester shrinks on washing.

b) Plastics are not affected by heat.

c) Acrilon is pure wool obtained from sheep.

d) Bakelite is a thermoplastic.

e) P.V.C. is a good conductor of electricity

11. Write full forms of:

a) P.V.C.

b) P.E.T.

12. State two advantages & disadvantages of synthetic fibres over natural fibres.

 

Click on link below to downloadCBSE Class 8 Science Synthetic Fibers And Plastics Assignment Set D

More Study Material