"Silkworms Build a New House" PPT courseware 3

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E-education edition third grade science volume 2	pptx	6 MB

"Silkworms Build a New House" PPT courseware 3

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Upload Time: 2024-10-01

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"Silkworms Build a New House" PPT courseware 3

Why does the silkworm baby make a cocoon to wrap itself up?

What became of the silkworm babies after the house was built?

What is the difference between the appearance of pupae and silkworms:

The pupa body is short and short, spindle-shaped, divided into three parts: head, thorax and abdomen. The head is small, the body is shortened and dark brown.

Can pupae move? What's growing on it?

Touch it gently with your hand; shine a flashlight on it; make a sound.

Scutum: two pairs of wings emerge from the scute

What else was found in the cut cocoon and what could it be?

shed skin

1. After the silkworm spins all its silk

2. The skin shed twice before pupation

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"Silkworms Build a New House" PPT courseware 2:

"Silkworms Build a New House" PPT Courseware 2 Reading textbook P26 related content guesses 1. Why do silkworms stop eating leaves and their bodies become yellow and shiny? The silkworms are ready to spin silk! ! 2. Before silkworms spin silk, what do the babies of silkworm farmers do? The performance of silkworm babies before spinning...

"Silkworms Build a New House" PPT courseware:

"Silkworms Build a New House" PPT courseware Silkworms spin silk and form cocoons. How is your silkworm baby growing? What's new? Is my silkworm baby sick? It doesn't seem to want to eat mulberry leaves. The same goes for my silkworm babies. When they grow to a certain extent, silkworm babies no longer...

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Update Time: 2024-10-01

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"Silkworms Build a New House" PPT courseware 3