"What Becomes a Chrysalis" Animal Life Cycle PPT Courseware 3

Description

"What Becomes a Chrysalis" Animal Life Cycle PPT Courseware 3

We knew this in the last lesson

The life of a silkworm starts from ( ). A silkworm egg is a ( ).

A silkworm that has just crawled out of a silkworm egg is called ( ), and its color is ( ).

Silkworms love to eat ( ). As soon as it lays eggs, we have to use a brush or feather to gently brush them onto the mulberry leaves.

When silkworms grow to a certain stage, they will grow new skin and replace the old skin. This is called ( ).

Silkworms don't eat and their bodies turn yellow and shiny because ( ). Before spinning, build a small shelf for it, or make a small grid with paper so that it can form a cocoon there.

The appearance of the silkworm changed in the cocoon and became ( ).

Common characteristics of insects:

The body is divided into three parts: head, thorax, and abdomen. It has no bones. The body is supported by the hard shell on the body surface. It is divided into three growth stages: egg, larvae and adult. The body is multi-sectioned, with a pair of antennae on the head and three pairs of legs on the chest.

Classwork

1. Fill in the blanks

1. I found that the silkworm moth came out of the cocoon ( ) and ( ) flew.

2. Two silkworm moths are facing each other tail to tail. This is what they are doing ( ).

3. The life of a silkworm goes through ( ) stages, and ( ) is the last stage.

2. Short answer

1. Are the eggs just laid by the female moth the same as the eggs we observed before? What's the difference?

Answer: The newly laid eggs are light yellow. The eggs we observed before were purple and black.

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For more information about the PPT courseware "What Becomes a Pupa in the Life Cycle of Animals", please click on the ppt label of What Becomes a Pupa in the Life Cycle of Animals.

"What Becomes a Chrysalis" PPT download of the life cycle of animals:

"What Becomes a Chrysalis" PPT Download of the Life Cycle of Animals Part One: Introduction of New Knowledge Thinking: Students, silkworms will turn into pupae when they grow to a certain stage, so what other changes will happen to the pupa? With this question, let's explore the pupa...

"What Becomes a Chrysalis" Animal Life Cycle PPT:

"What Becomes the Chrysalis" PPT on the Life Cycle of Animals Part One: Communicating Our New Discoveries What changes have taken place in the cocoon? What has become of the chrysalis? The moth pushed open the crack with force, stretched out its head first, and slowly crawled out. Most of its body had already come out...

"What Became the Silkworm Chrysalis" PPT Courseware 3:

"What Became the Silkworm Chrysalis" PPT Courseware 3 What changes happened in the silkworm cocoon? What has become of the pupa? Observe the silkworm chrysalis: Weigh it, take a photo, take a look, cut the cocoon, and observe the chrysalis. The size of the cocoon is related to the chrysalis. Generally speaking, the cocoon of a male silkworm baby is...

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Update Time: 2024-10-02

This template belongs to science courseware Third Grade Science Volume 2, Textbook Edition industry PPT template

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