SEBA Class 7 Science Important Chapter 3 Fibre to Fabric

SEBA Class 7 Science Important Chapter 3 Fibre to Fabric Solutions English Medium As Per SEBA New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters SEBA Class 7 General Science Additional Solutions and select need one. SCERT Important Solutions For Class 7 General Science Download PDF. Important Notes for Class 7 Science SCERT.

SEBA Class 7 Science Important Chapter 3 Fibre to Fabric

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. Assam SEBA Board Class 7 Science Additional Question Answer are part of All Subject Solutions. Here we have given SCERT Class 7 General Science Important Notes for All Chapters, You can practice these here.

Fibre to Fabric

Chapter: 3

IMPORTANT QUESTION ANSWER

A. Very Short Type Questions & Answers:

1. From which part of the sheep is wool obtained?

Ans: Wool is obtained from the fleece or hairy skin of the sheep.

2. What is the process of removing fleece from the body of a sheep called?

Ans: The process is called shearing.

3. Why does wool keep us warm in winter?

Ans: Wool traps air, and air is a poor conductor of heat, so it keeps us warm.

4. Name any two animals other than sheep that give us wool.

Ans: Yak and Angora goat.

5. What is scouring in wool processing?

Ans: Scouring is the washing of sheared wool to remove dirt and grease.

6. What do you mean by selective breeding?

Ans: Selective breeding is choosing parent animals with special traits to get better offspring.

7. What is sericulture?

Ans: Sericulture is the rearing of silkworms to obtain silk.

8. What do silkworms eat?

Ans: Silkworms eat mulberry leaves.

9. What is a cocoon?

Ans: A cocoon is a protective covering spun by a silkworm made of silk fibres.

10. What is reeling of silk?

Ans: Reeling is the process of unwinding silk threads from the cocoon.

B. Fill in the Blanks:

1. Wool is obtained from the ______ of sheep.

Ans: Fleece.

2. The process of removing fleece from the body of a sheep is called ______.

Ans: Shearing.

3. ______ is the washing of sheared wool to remove dirt and grease.

Ans: Scouring.

4. The rearing of silkworms to obtain silk is called ______.

Ans: Sericulture.

5. Silkworms feed on ______ leaves.

Ans: Mulberry.

6. The process of unwinding silk fibres from the cocoon is called ______.

Ans: Reeling.

7. The soft under-hair of sheep is used to make ______.

Ans: Wool.

8. ______ is a disease that affects wool industry workers.

Ans: Sorter’s disease.

9. The covering spun by silkworms is called a ______.

Ans: Cocoon.

10. Silk was first discovered in ______.

Ans: China.