"Strange Amber" PPT courseware 8

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"Strange Amber" PPT courseware 8

Introduction to Amber

Amber is fossilized pine resin from ancient times and can be used as decoration. Plant debris and various ancient small animals are often wrapped in the plant fat of fossils such as amber. In the honey-like color, you can often find a fly's wing or a small beetle, wisps of which are clearly visible. It can be said to be varied and colorful.

Features of this piece of amber:

1. Transparency.

2. There are two small things (flies and spiders) inside.

3. Several black rings appear around their legs.

What would have happened if it hadn't been such a coincidence?

①. The spider swooped over, swallowed the fly, and swaggered away. Only then did the rosin drip down, and there would be no more strange amber;

② If the spider has just eaten the fly and before it has time to escape, the rosin will drip down. Although there are two small insects wrapped in it, people can only see the spider.

③ If the spider is about to pounce, but the fallen rosin has already wrapped the fly, the spider will never fall into the trap.

Conditions for the formation of rosin balls

In summer, the sun is strong──the rosin oozes out

Old pine trees─can exude large drops of rosin

Flies and spiders encounter rosin──and are wrapped in it at the same time

The rosin continues to drip down──accumulating into rosin balls

Conditions for rosin balls to become fossilized

1. It takes a long time.

2. The land sinks and the water flows.

3. Pine trees rot.

4. Buried by sediment.

Expansion exercises: How else might the amber described in the text be formed? How do you imagine it? Write down your imagination.

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"Strange Amber" PPT courseware 7:

"Strange Amber" PPT Courseware 7 Eliminate the Obstacles Amber Pine Resin Wipe Covered with Spiders Noon Oozing Leaning forward and backward Struggling Surging Sticky Fly Hot Some Even inside that piece of transparent amber, the two little things were still lying down nicely. We can...

"Strange Amber" PPT courseware 6:

"Strange Amber" PPT Courseware 6 Learning Objectives: 1. How was this piece of amber formed? 2. Why is this piece of amber strange? What is the value of this piece of amber? Think about it: What is the content of the text? (Read the text freely and use your own words to summarize...

"Strange Amber" PPT courseware 5:

"Strange Amber" PPT Courseware 5 Introduction to Amber Amber is the fossil of ancient pine resin and can be used as decoration. Plant debris and various ancient small animals are often wrapped in the plant fat of fossils such as amber. In the honey-like color, a fly can often be found...

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Update Time: 2024-07-09

This template belongs to Chinese courseware Version A fifth grade Chinese language volume 2 industry PPT template

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