Worksheet on fibre to fabrics for Class VII students, covering topics like silkworm rearing, fleece, and wool processing.

Let's solve the problems step by step and explain the reasoning for each answer.

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Question 1:

The process of separating silk fibre from cocoon is called
- a) Shearing
- b) Reeling
- c) Printing

Explanation:
- Shearing: This is the process of removing wool from sheep.
- Reeling: This is the process of unwinding silk fibres from the cocoon of silkworms.
- Printing: This is a method used in textile manufacturing to apply designs onto fabrics, not related to silk extraction.

Correct Answer:
b) Reeling

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Question 2:

A pile of ________ is used for obtaining silk fibres.
- a) Fleece
- b) Cocoon
- c) Leaves

Explanation:
- Fleece: This refers to the wool obtained from sheep, not related to silk.
- Cocoon: Silk fibres are extracted from the cocoons of silkworms.
- Leaves: While leaves are food for silkworms, they are not used directly for obtaining silk fibres.

Correct Answer:
b) Cocoon

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Question 3:

The process of removal of fleece from the body of sheep is called ______.
- a) Shearing
- b) Scouring
- c) Sorting

Explanation:
- Shearing: This is the process of cutting or shaving off the wool (fleece) from a sheep.
- Scouring: This is a cleaning process, not related to wool removal.
- Sorting: This involves organizing or categorizing materials, not the actual removal of wool.

Correct Answer:
a) Shearing

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Question 4:

The soft under fur on a sheep’s body is called fleece.
- a) True
- b) False

Explanation:
- Fleece refers to the soft, woolly undercoat of a sheep, which is the part that is typically sheared for use in textiles.

Correct Answer:
a) True

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Question 5:

The process of rearing silkworms in order to obtain silk is called ______.
- a) Silviculture
- b) Sericulture
- c) Moriculture

Explanation:
- Silviculture: This is the practice of growing and managing forests.
- Sericulture: This is the process of raising silkworms to produce silk.
- Moriculture: This term is not commonly used in this context; it is more related to mulberry cultivation (which is part of sericulture but not the overall process).

Correct Answer:
b) Sericulture

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Question 6:

The silk and wool are made of a kind of

This question is incomplete in the provided image. However, based on general knowledge:
- Silk is produced by silkworms and is primarily composed of fibroin, a type of protein.
- Wool is derived from sheep and is also primarily composed of keratin, another type of protein.

If the question were completed with options like "protein," "fiber," etc., the correct answer would likely be related to these materials.

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Final Answers:

1. b) Reeling
2. b) Cocoon
3. a) Shearing
4. a) True
5. b) Sericulture
6. (Incomplete question)

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Boxed Final Answers:
\[
\boxed{
\begin{array}{l}
1. \text{b) Reeling} \\
2. \text{b) Cocoon} \\
3. \text{a) Shearing} \\
4. \text{a) True} \\
5. \text{b) Sericulture} \\
\end{array}
}
\]