The diagrams below show the life cycle of the silkworm and the stage in the production of silk cloth.
The first diagram draws a cycle of silkworms' life and the second diagram reveals the process to produce silk cloth. It can be seen that the silkworm has four phases; egg, silkworm larva, silk thread, and cocoon, whereas silk cloth takes five steps; select, boil, unwind, twist, and weave.
Biological life cycle of silkworm is begun when female moth laid its eggs on mulberry leaf. The second step in which the eggs hatch takes 10 days. In this stage, silkworm larva feed mulberry leaf. Then, in the next 4 - 6 weeks larva make its silk thread. After 3-8 days letter, in the fourth phase, silk thread completely changes into a cocoon and it takes 16 days before the cocoon finally metamorphose into moth.
On the other hand, another diagram shows how to create silk cloth. Firstly, it needs to select the cocoon. Secondly, the selected cocoon is put into boiling water. In the next process, cocoon is unwound and it can produce 300 to 900 metres of thread. After that, it is twisted and dyed. The final stage is that thread is woven into cloth then it is dyed once again.
The first diagram draws a cycle of silkworms' life and the second diagram reveals the process to produce silk cloth. It can be seen that the silkworm has four phases; egg, silkworm larva, silk thread, and cocoon, whereas silk cloth takes five steps; select, boil, unwind, twist, and weave.
Biological life cycle of silkworm is begun when female moth laid its eggs on mulberry leaf. The second step in which the eggs hatch takes 10 days. In this stage, silkworm larva feed mulberry leaf. Then, in the next 4 - 6 weeks larva make its silk thread. After 3-8 days letter, in the fourth phase, silk thread completely changes into a cocoon and it takes 16 days before the cocoon finally metamorphose into moth.
On the other hand, another diagram shows how to create silk cloth. Firstly, it needs to select the cocoon. Secondly, the selected cocoon is put into boiling water. In the next process, cocoon is unwound and it can produce 300 to 900 metres of thread. After that, it is twisted and dyed. The final stage is that thread is woven into cloth then it is dyed once again.
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